diff --git a/app/models/deliverable.rb b/app/models/deliverable.rb
index 1001a3f..e6db222 100644
--- a/app/models/deliverable.rb
+++ b/app/models/deliverable.rb
@@ -86,6 +86,11 @@ class Deliverable < ActiveRecord::Base
       (overhead_budgets.sum(:hours) || 0.0)
   end
 
+  # OPTIMIZE: N+1
+  def labor_hours_spent_total(date=nil)
+    issues.inject(0) {|total, issue| total += issue.billable_time_spent } # From redmine_overhead
+  end
+  
   # OPTIMIZE: N+1
   def hours_spent_total
     issues.inject(0) {|total, issue| total += issue.spent_hours }
diff --git a/app/models/retainer_deliverable.rb b/app/models/retainer_deliverable.rb
index 572a8df..2237025 100644
--- a/app/models/retainer_deliverable.rb
+++ b/app/models/retainer_deliverable.rb
@@ -133,6 +133,19 @@ class RetainerDeliverable < HourlyDeliverable
     end
   end
 
+  def labor_hours_spent_total(date=nil)
+    case scope_date_status(date)
+    when :in
+      time_entries = issues.collect {|issue| issue.time_entries.all(:conditions => {:tyear => date.year, :tmonth => date.month}) }.flatten
+
+      billable_hours_on_time_entries(time_entries)
+    when :out
+      0
+    else
+      super
+    end
+  end
+
   def fixed_budget_total(date=nil)
     case scope_date_status(date)
     when :in
diff --git a/app/views/deliverables/_details_row.html.erb b/app/views/deliverables/_details_row.html.erb
index e41d9f0..856c7b6 100644
--- a/app/views/deliverables/_details_row.html.erb
+++ b/app/views/deliverables/_details_row.html.erb
@@ -54,13 +54,15 @@
                           <td class="l"><a href="#"><strong>Labor</strong></a></td>
                           <td class="labor_budget_spent"><%= h(format_value_field_for_contracts(deliverable.labor_budget_spent(validated_period))) %></td>
                           <td class="labor_budget_total"><%= h(format_value_field_for_contracts(deliverable.labor_budget_total(validated_period))) %></td>
-                          <td> TODO: Release 2 / TODO hrs </td>
+                          <td class="labor_hours">
+                            <%= h(format_value_field_for_contracts(deliverable.labor_hours_spent_total(validated_period))) %>/<%= h(format_value_field_for_contracts(deliverable.labor_budget_hours(validated_period))) %> <%= l(:text_short_hours) %>
+                          </td>
                         </tr>
                         <tr>
                           <td class="l"><a href="#"><strong>Overhead</strong></a></td>
                           <td class="overhead_budget_spent"><%= h(format_value_field_for_contracts(deliverable.overhead_spent(validated_period))) %></td>
                           <td class="overhead_budget_total"><%= h(format_value_field_for_contracts(deliverable.overhead_budget_total(validated_period))) %></td>
-                          <td> TODO: Release 2 / TODO hrs </td>
+                          <td class="overhead_hours"> TODO: Release 2 / TODO hrs </td>
                         </tr>
 
                         <% deliverable.fixed_budgets.by_period(validated_period).each do |fixed_budget| %>
diff --git a/test/integration/contracts_show_test.rb b/test/integration/contracts_show_test.rb
index 4a3b780..101c422 100644
--- a/test/integration/contracts_show_test.rb
+++ b/test/integration/contracts_show_test.rb
@@ -281,6 +281,40 @@ class ContractsShowTest < ActionController::IntegrationTest
     end
   end
 
+  should "show the labor hours for the deliverable" do
+    configure_overhead_plugin
+
+    @manager = User.generate!
+
+    @deliverable1 = FixedDeliverable.generate!(:contract => @contract, :manager => @manager)
+    LaborBudget.generate!(:deliverable => @deliverable1,
+                          :hours => 100,
+                          :budget => 4000.5)
+
+    @issue1 = Issue.generate_for_project!(@project)
+    @time_entry1 = TimeEntry.generate!(:issue => @issue1,
+                                       :project => @project,
+                                       :activity => @billable_activity,
+                                       :spent_on => Date.today,
+                                       :hours => 10,
+                                       :user => @manager)
+
+    @rate = Rate.generate!(:project => @project,
+                           :user => @manager,
+                           :date_in_effect => Date.yesterday,
+                           :amount => 100)
+
+    @deliverable1.issues << @issue1
+
+    assert_equal 1, @deliverable1.issues.count
+
+    visit_contract_page(@contract)
+    assert_select "table#deliverables" do
+      assert_select "td.labor_hours", :text => /10\/100/
+    end
+
+  end
+  
   should "show the current period for a Retainer" do
     today_mock = Date.new(2010,2,15)
     Date.stubs(:today).returns(today_mock)
diff --git a/test/unit/retainer_deliverable_test.rb b/test/unit/retainer_deliverable_test.rb
index 8460e72..860b0da 100644
--- a/test/unit/retainer_deliverable_test.rb
+++ b/test/unit/retainer_deliverable_test.rb
@@ -176,6 +176,66 @@ class RetainerDeliverableTest < ActiveSupport::TestCase
     end
   end
 
+  context "#labor_hours_spent_total" do
+    setup do
+      @project = Project.generate!
+      @contract = Contract.generate!(:billable_rate => 100, :project => @project)
+      @deliverable = RetainerDeliverable.generate!(:start_date => '2010-01-01', :end_date => '2010-03-31', :contract => @contract)
+
+      @manager = User.generate!
+      @role = Role.generate!
+      User.add_to_project(@manager, @project, @role)
+
+      configure_overhead_plugin
+
+      @issue1 = Issue.generate_for_project!(@project)
+      @time_entry1 = TimeEntry.generate!(:issue => @issue1,
+                                         :project => @project,
+                                         :activity => @billable_activity,
+                                         :spent_on => Date.new(2010,1,2),
+                                         :hours => 10,
+                                         :user => @manager)
+      @time_entry2 = TimeEntry.generate!(:issue => @issue1,
+                                         :project => @project,
+                                         :activity => @billable_activity,
+                                         :spent_on => Date.new(2010,2,1),
+                                         :hours => 20,
+                                         :user => @manager)
+
+      @rate = Rate.generate!(:project => @project,
+                             :user => @manager,
+                             :date_in_effect => Date.new(2010,1,1),
+                             :amount => 100)
+
+      @deliverable.issues << @issue1
+      assert_equal 30, @deliverable.labor_hours_spent_total
+    end
+    
+    context "with a empty period" do
+      should "use all periods" do 
+        assert_equal 30.0, @deliverable.labor_hours_spent_total(nil)
+      end
+    end
+
+    context "with a period out of the retainer range" do
+      should "filter the records" do
+        assert_equal 0, @deliverable.labor_hours_spent_total(Date.new(2011,1,1))
+      end
+    end
+
+    context "with an invalid period" do
+      should "return 0" do
+        assert_equal 0, @deliverable.labor_hours_spent_total('1')
+      end
+    end
+
+    context "with a period in the retainer range" do
+      should "filter the records" do
+        assert_equal 20.0, @deliverable.labor_hours_spent_total(Date.new(2010,2,1))
+      end
+    end
+  end
+
   context "#overhead_spent" do
     setup do
       @project = Project.generate!