diff --git a/app/controllers/customers_controller.rb b/app/controllers/customers_controller.rb
index be25f1be..b773ee79 100644
--- a/app/controllers/customers_controller.rb
+++ b/app/controllers/customers_controller.rb
@@ -18,6 +18,19 @@ def index
     )
   end
 
+  def show
+    customer = Customer.find_by(id: params[:id])
+    if customer
+      render json: customer.as_json(
+        only: [:id, :name, :registered_at, :address, :city, :state, :postal_code, :phone, :account_credit, :rentals],
+        methods: [:movies_checked_out_count],
+        include: [:rentals]
+      )
+    else
+      render status: :bad_request, json: { errors: errors }
+    end
+  end
+
 private
   def parse_query_args
     errors = {}
diff --git a/config/routes.rb b/config/routes.rb
index 8eff1ff6..f808027a 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -1,7 +1,7 @@
 Rails.application.routes.draw do
   # For details on the DSL available within this file, see http://guides.rubyonrails.org/routing.html
 
-  resources :customers, only: [:index]
+  resources :customers, only: [:index, :show]
 
   resources :movies, only: [:index, :show, :create], param: :title