diff --git a/app/src/free/java/com.udacity.gradle.builditbigger/MainActivityFlavoredFragment.java b/app/src/free/java/com.udacity.gradle.builditbigger/MainActivityFlavoredFragment.java
index aab1709..bc1dfd4 100644
--- a/app/src/free/java/com.udacity.gradle.builditbigger/MainActivityFlavoredFragment.java
+++ b/app/src/free/java/com.udacity.gradle.builditbigger/MainActivityFlavoredFragment.java
@@ -7,13 +7,44 @@ import android.view.ViewGroup;
 import android.widget.RelativeLayout;
 import android.widget.RelativeLayout.LayoutParams;
 
-import com.google.android.gms.ads.AdRequest;
+import com.google.android.gms.ads.AdListener;
 import com.google.android.gms.ads.AdView;
+import com.google.android.gms.ads.InterstitialAd;
+
+import net.headlezz.jokesbackend.myApi.model.Joke;
 
 public class MainActivityFlavoredFragment extends MainActivityFragment {
 
     public static String TAG = MainActivityFlavoredFragment.class.getSimpleName();
 
+    InterstitialAd mInterstitial;
+    Joke mJoke;
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        mInterstitial = new InterstitialAd(getContext());
+        mInterstitial.setAdUnitId(getString(R.string.banner_ad_unit_id));
+        mInterstitial.setAdListener(new AdListener() {
+            @Override
+            public void onAdClosed() {
+                super.onAdClosed();
+                loadNextInterstitial();
+                MainActivityFlavoredFragment.super.showJoke(mJoke);
+            }
+
+            @Override
+            public void onAdLoaded() {
+                super.onAdLoaded();
+            }
+        });
+        loadNextInterstitial();
+    }
+
+    private void loadNextInterstitial() {
+        mInterstitial.loadAd(AdRequestBuilder.getNewRequest());
+    }
+
     @Override
     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
         RelativeLayout view = (RelativeLayout) super.onCreateView(inflater, container, savedInstanceState);
@@ -22,16 +53,21 @@ public class MainActivityFlavoredFragment extends MainActivityFragment {
     }
 
     private void attachBannerAd(RelativeLayout rootView) {
-        // initialize the adview
         AdView adView = (AdView) LayoutInflater.from(rootView.getContext()).inflate(R.layout.adview, rootView, false);
         LayoutParams params = new LayoutParams(LayoutParams.WRAP_CONTENT, LayoutParams.WRAP_CONTENT);
         params.addRule(RelativeLayout.CENTER_HORIZONTAL);
         params.addRule(RelativeLayout.ALIGN_PARENT_BOTTOM);
         adView.setLayoutParams(params);
         rootView.addView(adView);
-        AdRequest adRequest = new AdRequest.Builder()
-                .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
-                .build();
-        adView.loadAd(adRequest);
+        adView.loadAd(AdRequestBuilder.getNewRequest());
+    }
+
+    @Override
+    public void showJoke(Joke joke) {
+        mJoke = joke;
+        if(mInterstitial.isLoaded())
+            mInterstitial.show();
+        else
+            super.showJoke(joke);
     }
 }
diff --git a/app/src/main/java/com/udacity/gradle/builditbigger/AdRequestBuilder.java b/app/src/main/java/com/udacity/gradle/builditbigger/AdRequestBuilder.java
new file mode 100644
index 0000000..8c77e39
--- /dev/null
+++ b/app/src/main/java/com/udacity/gradle/builditbigger/AdRequestBuilder.java
@@ -0,0 +1,14 @@
+package com.udacity.gradle.builditbigger;
+
+import com.google.android.gms.ads.AdRequest;
+
+public class AdRequestBuilder {
+
+    public static AdRequest getNewRequest() {
+        return new AdRequest.Builder()
+                .addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
+                .addTestDevice("AD770D74C4E2AF0FA36FBFD60844FC9E")
+                .build();
+    }
+
+}
diff --git a/app/src/main/java/com/udacity/gradle/builditbigger/MainActivityFragment.java b/app/src/main/java/com/udacity/gradle/builditbigger/MainActivityFragment.java
index 062f29e..c4d50f3 100644
--- a/app/src/main/java/com/udacity/gradle/builditbigger/MainActivityFragment.java
+++ b/app/src/main/java/com/udacity/gradle/builditbigger/MainActivityFragment.java
@@ -43,7 +43,7 @@ public abstract class MainActivityFragment extends Fragment implements View.OnCl
      * starts the async task to download and show a new joke
      * cancels old downloads if theres already a running one
      */
-    private void downloadNewJoke() {
+    protected void downloadNewJoke() {
         mJokeLoaderTask = new JokeLoaderTask();
         mJokeLoaderTask.execute();
         DownloadDialogFragment frag = new DownloadDialogFragment();
@@ -55,6 +55,10 @@ public abstract class MainActivityFragment extends Fragment implements View.OnCl
      * @param joke Joke to show
      */
     public void onEvent(Joke joke) {
+        showJoke(joke);
+    }
+
+    public void showJoke(Joke joke) {
         Intent i = new Intent(getContext(), JokePresenterActivity.class);
         i.putExtra(JokePresenterActivity.BUNDLE_ARG_JOKE, joke.getJoke());
         startActivity(i);