diff --git a/accounts_lua.go b/accounts_lua.go
index 4ab1c07..016a47a 100644
--- a/accounts_lua.go
+++ b/accounts_lua.go
@@ -55,7 +55,6 @@ func luaGetAccounts(L *lua.LState) int {
 	return 1
 }
 
-// Registers my account type to given L.
 func luaRegisterAccounts(L *lua.LState) {
 	mt := L.NewTypeMetatable(luaAccountTypeName)
 	L.SetGlobal("account", mt)
diff --git a/balance_lua.go b/balance_lua.go
index 220edb0..8e9ae8b 100644
--- a/balance_lua.go
+++ b/balance_lua.go
@@ -12,7 +12,6 @@ type Balance struct {
 
 const luaBalanceTypeName = "balance"
 
-// Registers my balance type to given L.
 func luaRegisterBalances(L *lua.LState) {
 	mt := L.NewTypeMetatable(luaBalanceTypeName)
 	L.SetGlobal("balance", mt)
diff --git a/date_lua.go b/date_lua.go
index 1f7d2a6..437ae7b 100644
--- a/date_lua.go
+++ b/date_lua.go
@@ -8,7 +8,6 @@ import (
 const luaDateTypeName = "date"
 const timeFormat = "2006-01-02"
 
-// Registers my date type to given L.
 func luaRegisterDates(L *lua.LState) {
 	mt := L.NewTypeMetatable(luaDateTypeName)
 	L.SetGlobal("date", mt)
diff --git a/js/actions/ErrorActions.js b/js/actions/ErrorActions.js
index 84532a9..289a14c 100644
--- a/js/actions/ErrorActions.js
+++ b/js/actions/ErrorActions.js
@@ -21,6 +21,17 @@ function ajaxError(error) {
 	};
 }
 
+function clientError(error) {
+	var e = new Error();
+	e.ErrorId = 999;
+	e.ErrorString = "Client Error: " + error;
+
+	return {
+		type: ErrorConstants.ERROR_CLIENT,
+		error: e
+	};
+}
+
 function clearError() {
 	return {
 		type: ErrorConstants.CLEAR_ERROR,
@@ -30,5 +41,6 @@ function clearError() {
 module.exports = {
 	serverError: serverError,
 	ajaxError: ajaxError,
+	clientError: clientError,
 	clearError: clearError
 };
diff --git a/js/actions/ReportActions.js b/js/actions/ReportActions.js
index d774a6b..725e21b 100644
--- a/js/actions/ReportActions.js
+++ b/js/actions/ReportActions.js
@@ -6,9 +6,10 @@ var models = require('../models.js');
 var Report = models.Report;
 var Error = models.Error;
 
-function fetchReport() {
+function fetchReport(reportName) {
 	return {
-		type: ReportConstants.FETCH_REPORT
+		type: ReportConstants.FETCH_REPORT,
+		reportName: reportName
 	}
 }
 
@@ -19,9 +20,25 @@ function reportFetched(report) {
 	}
 }
 
+function selectReport(report, seriesTraversal) {
+	return {
+		type: ReportConstants.SELECT_REPORT,
+		report: report,
+		seriesTraversal: seriesTraversal
+	}
+}
+
+function reportSelected(flattenedReport, seriesTraversal) {
+	return {
+		type: ReportConstants.REPORT_SELECTED,
+		report: flattenedReport,
+		seriesTraversal: seriesTraversal
+	}
+}
+
 function fetch(report) {
 	return function (dispatch) {
-		dispatch(fetchReport());
+		dispatch(fetchReport(report));
 
 		$.ajax({
 			type: "GET",
@@ -45,6 +62,48 @@ function fetch(report) {
 	};
 }
 
+function select(report, seriesTraversal) {
+	return function (dispatch) {
+		if (!seriesTraversal)
+			seriesTraversal = [];
+		dispatch(selectReport(report, seriesTraversal));
+
+		// Descend the tree to the right series to flatten
+		var series = report;
+		for (var i=0; i < seriesTraversal.length; i++) {
+			if (!series.Series.hasOwnProperty(seriesTraversal[i])) {
+				dispatch(ErrorActions.clientError("Invalid series"));
+				return;
+			}
+			series = series.Series[seriesTraversal[i]];
+		}
+
+		// Actually flatten the data
+		var flattenedSeries = series.mapReduceChildren(null,
+			function(accumulator, currentValue, currentIndex, array) {
+				return accumulator + currentValue;
+			}
+		);
+
+		// Add back in any values from the current level
+		if (series.hasOwnProperty('Values'))
+			flattenedSeries[report.topLevelAccountName] = series.Values;
+
+		var flattenedReport = new Report();
+
+		flattenedReport.ReportId = report.ReportId;
+		flattenedReport.Title = report.Title;
+		flattenedReport.Subtitle = report.Subtitle;
+		flattenedReport.XAxisLabel = report.XAxisLabel;
+		flattenedReport.YAxisLabel = report.YAxisLabel;
+		flattenedReport.Labels = report.Labels.slice();
+		flattenedReport.FlattenedSeries = flattenedSeries;
+
+		dispatch(reportSelected(flattenedReport, seriesTraversal));
+	};
+}
+
 module.exports = {
-	fetch: fetch
+	fetch: fetch,
+	select: select
 };
diff --git a/js/components/ReportsTab.js b/js/components/ReportsTab.js
index a96c143..4a99f72 100644
--- a/js/components/ReportsTab.js
+++ b/js/components/ReportsTab.js
@@ -1,5 +1,10 @@
 var React = require('react');
 
+var ReactBootstrap = require('react-bootstrap');
+
+var Button = ReactBootstrap.Button;
+var Panel = ReactBootstrap.Panel;
+
 var StackedBarChart = require('../components/StackedBarChart');
 
 module.exports = React.createClass({
@@ -10,10 +15,69 @@ module.exports = React.createClass({
 	componentWillMount: function() {
 		this.props.onFetchReport("monthly_expenses");
 	},
+	componentWillReceiveProps: function(nextProps) {
+		if (nextProps.reports['monthly_expenses'] && !nextProps.selectedReport.report) {
+			this.props.onSelectReport(nextProps.reports['monthly_expenses'], []);
+		}
+	},
+	onSelectSeries: function(series) {
+		if (series == this.props.selectedReport.report.topLevelAccountName)
+			return;
+		var seriesTraversal = this.props.selectedReport.seriesTraversal.slice();
+		seriesTraversal.push(series);
+		this.props.onSelectReport(this.props.reports[this.props.selectedReport.report.ReportId], seriesTraversal);
+	},
 	render: function() {
-		report = [];
-		if (this.props.reports['monthly_expenses'])
-			report = (<StackedBarChart data={this.props.reports['monthly_expenses']} />);
+		var report = [];
+		if (this.props.selectedReport.report) {
+			var titleTracks = [];
+			var seriesTraversal = [];
+
+			for (var i = 0; i < this.props.selectedReport.seriesTraversal.length; i++) {
+				var name = this.props.selectedReport.report.Title;
+				if (i > 0)
+					name = this.props.selectedReport.seriesTraversal[i-1];
+
+				// Make a closure for going up the food chain
+				var self = this;
+				var navOnClick = function() {
+					var onSelectReport = self.props.onSelectReport;
+					var report = self.props.reports[self.props.selectedReport.report.ReportId];
+					var mySeriesTraversal = seriesTraversal.slice();
+					return function() {
+						onSelectReport(report, mySeriesTraversal);
+					};
+				}();
+				titleTracks.push((
+					<Button bsStyle="link"
+					onClick={navOnClick}>
+					{name}
+					</Button>
+				));
+				titleTracks.push((<span>/</span>));
+				seriesTraversal.push(this.props.selectedReport.seriesTraversal[i]);
+			}
+			if (titleTracks.length == 0)
+				titleTracks.push((
+					<Button bsStyle="link">
+					{this.props.selectedReport.report.Title}
+					</Button>
+				));
+			else
+				titleTracks.push((
+					<Button bsStyle="link">
+					{this.props.selectedReport.seriesTraversal[this.props.selectedReport.seriesTraversal.length-1]}
+					</Button>
+				));
+
+			report = (<Panel header={titleTracks}>
+				<StackedBarChart
+					report={this.props.selectedReport.report}
+					onSelectSeries={this.onSelectSeries}
+					seriesTraversal={this.props.selectedReport.seriesTraversal} />
+				</Panel>
+			);
+		}
 		return (
 			<div>
 				{report}
diff --git a/js/components/StackedBarChart.js b/js/components/StackedBarChart.js
index 56b3783..ee3764c 100644
--- a/js/components/StackedBarChart.js
+++ b/js/components/StackedBarChart.js
@@ -1,15 +1,13 @@
 var d3 = require('d3');
 var React = require('react');
 
-var Panel = require('react-bootstrap').Panel;
-
 module.exports = React.createClass({
 	displayName: "StackedBarChart",
-	calcMinMax: function(data) {
+	calcMinMax: function(series) {
 		var children = [];
-		for (var child in data) {
-			if (data.hasOwnProperty(child))
-				children.push(data[child]);
+		for (var child in series) {
+			if (series.hasOwnProperty(child))
+				children.push(series[child]);
 		}
 
 		var positiveValues = [0];
@@ -40,12 +38,6 @@ module.exports = React.createClass({
 		return Math.ceil(rangePerTick/roundTo)*roundTo;
 	},
 	render: function() {
-		var data = this.props.data.mapReduceChildren(null,
-			function(accumulator, currentValue, currentIndex, array) {
-				return accumulator + currentValue;
-			}
-		);
-
 		height = 400;
 		width = 600;
 		legendWidth = 100;
@@ -54,7 +46,7 @@ module.exports = React.createClass({
 		height -= yMargin*2;
 		width -= xMargin*2;
 
-		var minMax = this.calcMinMax(data);
+		var minMax = this.calcMinMax(this.props.report.FlattenedSeries);
 		var y = d3.scaleLinear()
 			.range([0, height])
 			.domain(minMax);
@@ -63,7 +55,7 @@ module.exports = React.createClass({
 
 		var x = d3.scaleLinear()
 			.range([0, width])
-			.domain([0, this.props.data.Labels.length + 0.5]);
+			.domain([0, this.props.report.Labels.length + 0.5]);
 
 		var bars = [];
 		var labels = [];
@@ -76,13 +68,13 @@ module.exports = React.createClass({
 		// negativeSum arrays
 		var positiveSum = [];
 		var negativeSum = [];
-		for (var i=0; i < this.props.data.Labels.length; i++) {
+		for (var i=0; i < this.props.report.Labels.length; i++) {
 			positiveSum.push(0);
 			negativeSum.push(0);
 			var labelX = x(i) + barStart + barWidth/2;
 			var labelY = height + 15;
 			labels.push((
-				<text x={labelX} y={labelY} transform={"rotate(45 "+labelX+" "+labelY+")"}>{this.props.data.Labels[i]}</text>
+				<text x={labelX} y={labelY} transform={"rotate(45 "+labelX+" "+labelY+")"}>{this.props.report.Labels[i]}</text>
 			));
 			labels.push((
 				<line className="axis-tick" x1={labelX} y1={height-3} x2={labelX} y2={height+3} />
@@ -103,14 +95,24 @@ module.exports = React.createClass({
 		for (var i=0-xAxisMarksEvery; i > minMax[0]; i -= xAxisMarksEvery)
 			makeXLabel(i);
 
-		//TODO handle Values from current series?
 		var legendMap = {};
-		for (var child in data) {
-			childId++;
-			var rectClasses = "chart-element chart-color" + (childId % 12);
-			if (data.hasOwnProperty(child)) {
-				for (var i=0; i < data[child].length; i++) {
-					var value = data[child][i];
+		for (var child in this.props.report.FlattenedSeries) {
+			if (this.props.report.FlattenedSeries.hasOwnProperty(child)) {
+				childId++;
+				var childData = this.props.report.FlattenedSeries[child];
+				var rectClasses = "chart-element chart-color" + (childId % 12);
+				var self = this;
+				var rectOnClick = function() {
+					var childName = child;
+					var onSelectSeries = self.props.onSelectSeries;
+					return function() {
+						onSelectSeries(childName);
+					};
+				}();
+
+				var seriesBars = [];
+				for (var i=0; i < childData.length; i++) {
+					var value = childData[i];
 					if (value == 0)
 						continue;
 					legendMap[child] = childId;
@@ -124,10 +126,15 @@ module.exports = React.createClass({
 						negativeSum[i] += rectHeight;
 					}
 
-					bars.push((
-						<rect className={rectClasses} x={x(i) + barStart} y={rectY} width={barWidth} height={rectHeight} rx={1} ry={1}/>
+					seriesBars.push((
+						<rect onClick={rectOnClick} className={rectClasses} x={x(i) + barStart} y={rectY} width={barWidth} height={rectHeight} rx={1} ry={1}/>
 					));
 				}
+				bars.push((
+					<g className="chart-series">
+						{seriesBars}
+					</g>
+				));
 			}
 		}
 
@@ -144,19 +151,17 @@ module.exports = React.createClass({
 		}
 
 		return (
-			<Panel header={this.props.data.Title}>
-				<svg height={height + 2*yMargin} width={width + 2*xMargin + legendWidth}>
-					<g className="stacked-bar-chart" transform={"translate("+xMargin+" "+yMargin+")"}>
-						{bars}
-						<line className="axis x-axis" x1={0} y1={height} x2={width} y2={height} />
-						<line className="axis y-axis" x1={0} y1={0} x2={0} y2={height} />
-						{labels}
-					</g>
-					<g className="chart-legend" transform={"translate("+(width + 2*xMargin)+" "+yMargin+")"}>
-						{legend}
-					</g>
-				</svg>
-			</Panel>
+			<svg height={height + 2*yMargin} width={width + 2*xMargin + legendWidth}>
+				<g className="stacked-bar-chart" transform={"translate("+xMargin+" "+yMargin+")"}>
+					{bars}
+					<line className="axis x-axis" x1={0} y1={height} x2={width} y2={height} />
+					<line className="axis y-axis" x1={0} y1={0} x2={0} y2={height} />
+					{labels}
+				</g>
+				<g className="chart-legend" transform={"translate("+(width + 2*xMargin)+" "+yMargin+")"}>
+					{legend}
+				</g>
+			</svg>
 		);
 	}
 });
diff --git a/js/constants/ReportConstants.js b/js/constants/ReportConstants.js
index 7e8a913..da955c3 100644
--- a/js/constants/ReportConstants.js
+++ b/js/constants/ReportConstants.js
@@ -2,5 +2,7 @@ var keyMirror = require('keymirror');
 
 module.exports = keyMirror({
 	FETCH_REPORT: null,
-	REPORT_FETCHED: null
+	REPORT_FETCHED: null,
+	SELECT_REPORT: null,
+	REPORT_SELECTED: null
 });
diff --git a/js/containers/ReportsTabContainer.js b/js/containers/ReportsTabContainer.js
index 9a917e2..d9bb3e6 100644
--- a/js/containers/ReportsTabContainer.js
+++ b/js/containers/ReportsTabContainer.js
@@ -5,13 +5,15 @@ var ReportsTab = require('../components/ReportsTab');
 
 function mapStateToProps(state) {
 	return {
-		reports: state.reports
+		reports: state.reports,
+		selectedReport: state.selectedReport
 	}
 }
 
 function mapDispatchToProps(dispatch) {
 	return {
-		onFetchReport: function(reportname) {dispatch(ReportActions.fetch(reportname))}
+		onFetchReport: function(reportname) {dispatch(ReportActions.fetch(reportname))},
+		onSelectReport: function(report, seriesTraversal) {dispatch(ReportActions.select(report, seriesTraversal))}
 	}
 }
 
diff --git a/js/models.js b/js/models.js
index bf505bc..3efda47 100644
--- a/js/models.js
+++ b/js/models.js
@@ -399,16 +399,16 @@ Error.prototype.isError = function() {
 
 function Series() {
 	this.Values = [];
-	this.Children = {};
+	this.Series = {};
 }
 
 Series.prototype.toJSONobj = function() {
 	var json_obj = {};
 	json_obj.Values = this.Values;
-	json_obj.Children = {};
-	for (var child in this.Children) {
-		if (this.Children.hasOwnProperty(child))
-			json_obj.Children[child] = this.Children[child].toJSONobj();
+	json_obj.Series = {};
+	for (var child in this.Series) {
+		if (this.Series.hasOwnProperty(child))
+			json_obj.Series[child] = this.Series[child].toJSONobj();
 	}
 	return json_obj;
 }
@@ -416,20 +416,20 @@ Series.prototype.toJSONobj = function() {
 Series.prototype.fromJSONobj = function(json_obj) {
 	if (json_obj.hasOwnProperty("Values"))
 		this.Values = json_obj.Values;
-	if (json_obj.hasOwnProperty("Children")) {
-		for (var child in json_obj.Children) {
-			if (json_obj.Children.hasOwnProperty(child))
-				this.Children[child] = new Series();
-				this.Children[child].fromJSONobj(json_obj.Children[child]);
+	if (json_obj.hasOwnProperty("Series")) {
+		for (var child in json_obj.Series) {
+			if (json_obj.Series.hasOwnProperty(child))
+				this.Series[child] = new Series();
+				this.Series[child].fromJSONobj(json_obj.Series[child]);
 		}
 	}
 }
 
 Series.prototype.mapReduceChildren = function(mapFn, reduceFn) {
 	var children = {}
-	for (var child in this.Children) {
-		if (this.Children.hasOwnProperty(child))
-			children[child] = this.Children[child].mapReduce(mapFn, reduceFn);
+	for (var child in this.Series) {
+		if (this.Series.hasOwnProperty(child))
+			children[child] = this.Series[child].mapReduce(mapFn, reduceFn);
 	}
 	return children;
 }
@@ -441,9 +441,9 @@ Series.prototype.mapReduce = function(mapFn, reduceFn) {
 	else
 		childValues.push(this.Values.slice());
 
-	for (var child in this.Children) {
-		if (this.Children.hasOwnProperty(child))
-			childValues.push(this.Children[child].mapReduce(mapFn, reduceFn));
+	for (var child in this.Series) {
+		if (this.Series.hasOwnProperty(child))
+			childValues.push(this.Series[child].mapReduce(mapFn, reduceFn));
 	}
 
 	var reducedValues = [];
@@ -466,8 +466,11 @@ function Report() {
 	this.YAxisLabel = "";
 	this.Labels = [];
 	this.Series = {};
+	this.FlattenedSeries = {};
 }
 
+Report.prototype.topLevelAccountName = "(top level)";
+
 Report.prototype.toJSON = function() {
 	var json_obj = {};
 	json_obj.ReportId = this.ReportId;
diff --git a/js/reducers/MoneyGoReducer.js b/js/reducers/MoneyGoReducer.js
index bd534bc..8546436 100644
--- a/js/reducers/MoneyGoReducer.js
+++ b/js/reducers/MoneyGoReducer.js
@@ -8,6 +8,7 @@ var SecurityTemplateReducer = require('./SecurityTemplateReducer');
 var SelectedAccountReducer = require('./SelectedAccountReducer');
 var SelectedSecurityReducer = require('./SelectedSecurityReducer');
 var ReportReducer = require('./ReportReducer');
+var SelectedReportReducer = require('./SelectedReportReducer');
 var ErrorReducer = require('./ErrorReducer');
 
 module.exports = Redux.combineReducers({
@@ -19,5 +20,6 @@ module.exports = Redux.combineReducers({
 	selectedAccount: SelectedAccountReducer,
 	selectedSecurity: SelectedSecurityReducer,
 	reports: ReportReducer,
+	selectedReport: SelectedReportReducer,
 	error: ErrorReducer
 });
diff --git a/js/reducers/SelectedReportReducer.js b/js/reducers/SelectedReportReducer.js
new file mode 100644
index 0000000..87ae68c
--- /dev/null
+++ b/js/reducers/SelectedReportReducer.js
@@ -0,0 +1,23 @@
+var assign = require('object-assign');
+
+var ReportConstants = require('../constants/ReportConstants');
+var UserConstants = require('../constants/UserConstants');
+
+const initialState = {
+	report: null,
+	seriesTraversal: []
+};
+
+module.exports = function(state = initialState, action) {
+	switch (action.type) {
+		case ReportConstants.REPORT_SELECTED:
+			return {
+				report: action.report,
+				seriesTraversal: action.seriesTraversal
+			};
+		case UserConstants.USER_LOGGEDOUT:
+			return initialState;
+		default:
+			return state;
+	}
+};
diff --git a/reports.go b/reports.go
index d4067d3..7c15826 100644
--- a/reports.go
+++ b/reports.go
@@ -25,8 +25,8 @@ const (
 const luaTimeoutSeconds time.Duration = 5 // maximum time a lua request can run for
 
 type Series struct {
-	Values   []float64
-	Children map[string]*Series
+	Values []float64
+	Series map[string]*Series
 }
 
 type Report struct {
diff --git a/reports_lua.go b/reports_lua.go
index efb0e0f..9da36fe 100644
--- a/reports_lua.go
+++ b/reports_lua.go
@@ -97,8 +97,8 @@ func luaReportSeries(L *lua.LState) int {
 		ud.Value = s
 	} else {
 		report.Series[name] = &Series{
-			Children: make(map[string]*Series),
-			Values:   make([]float64, cap(report.Labels)),
+			Series: make(map[string]*Series),
+			Values: make([]float64, cap(report.Labels)),
 		}
 		ud.Value = report.Series[name]
 	}
@@ -157,8 +157,8 @@ func luaSeries__index(L *lua.LState) int {
 	switch field {
 	case "Value", "value":
 		L.Push(L.NewFunction(luaSeriesValue))
-	case "Series", "series", "Child", "child":
-		L.Push(L.NewFunction(luaSeriesChildren))
+	case "Series", "series":
+		L.Push(L.NewFunction(luaSeriesSeries))
 	default:
 		L.ArgError(2, "unexpected series attribute: "+field)
 	}
@@ -179,20 +179,20 @@ func luaSeriesValue(L *lua.LState) int {
 	return 0
 }
 
-func luaSeriesChildren(L *lua.LState) int {
+func luaSeriesSeries(L *lua.LState) int {
 	parent := luaCheckSeries(L, 1)
 	name := L.CheckString(2)
 	ud := L.NewUserData()
 
-	s, ok := parent.Children[name]
+	s, ok := parent.Series[name]
 	if ok {
 		ud.Value = s
 	} else {
-		parent.Children[name] = &Series{
-			Children: make(map[string]*Series),
-			Values:   make([]float64, cap(parent.Values)),
+		parent.Series[name] = &Series{
+			Series: make(map[string]*Series),
+			Values: make([]float64, cap(parent.Values)),
 		}
-		ud.Value = parent.Children[name]
+		ud.Value = parent.Series[name]
 	}
 	L.SetMetatable(ud, L.GetTypeMetatable(luaSeriesTypeName))
 	L.Push(ud)
diff --git a/securities_lua.go b/securities_lua.go
index 77feb5b..6a9d347 100644
--- a/securities_lua.go
+++ b/securities_lua.go
@@ -53,7 +53,6 @@ func luaGetSecurities(L *lua.LState) int {
 	return 1
 }
 
-// Registers my security type to given L.
 func luaRegisterSecurities(L *lua.LState) {
 	mt := L.NewTypeMetatable(luaSecurityTypeName)
 	L.SetGlobal("security", mt)
diff --git a/static/css/reports.css b/static/css/reports.css
index f522620..45bba8a 100644
--- a/static/css/reports.css
+++ b/static/css/reports.css
@@ -28,7 +28,7 @@
 }
 .chart-color8 {
 	fill: #ff7f00;
-	fill: #df5f00;
+	stroke: #df5f00;
 }
 .chart-color9 {
 	fill: #cab2d6;
@@ -50,7 +50,7 @@
 .chart-element {
 	stroke-width: 0;
 }
-.chart-element:hover {
+g.chart-series:hover .chart-element {
 	stroke-width: 2;
 }
 .chart-legend rect {