Sometimes you may need to replay story levels either to get more gold (to level your dice) or to fulfill certain quests.

You can replay any level on the story path simply by tapping the level. If you want to play older levels you can navigate the pages by tapping the left (and right) arrow on the side of the page.

Replaying levels on the current and previous page awards silver chests. Replaying (easier) levels that are farther than that, give less valuable bronze chests.