Rules and Prizes may be different for every Challenge.  

1. Open your app, and click on the icon for the Challenge you're playing.  If you're in the timeline, click the "X" to close out of the app to reach the My Challenge page.

2. On the Series Details screen, click on the lower left of the bar to view more detail about the Challenge you're playing in the Series.

3. On the Challenge Details screen, click the link in the footer called Rules & Prizes. 

On the Rules & Prizes screen, click on the Prizes tab and scroll to review the prizes available.