1. A method for serving episodic secondary content in a mobile device, the method comprising: receiving, in the mobile device, a plurality of episodic secondary content items corresponding to an episodic secondary content set and an episodic manifest, the episodic manifest including indexes coupling at least two episodic secondary content items from the episodic secondary content set; presenting an initial episodic secondary content item during a predetermined break in presentation of a primary content item on the mobile device; prompting a user of the mobile device to select an additional episodic secondary content item from the set the plurality of episodic secondary content items coupled to the initial episodic secondary content item and determined by the episodic manifest; and receiving a user selection of the additional episodic secondary content item to be presented during a subsequent predetermined break in presentation of the primary content item on the mobile device.