American Dad! (2005)

S13E16 Daesong Heavy Industries II: Return to Innocence

Following the ship's explosion, the group finds themselves scattered. Stan and Francine, suffering from memory loss, revert to a primitive lifestyle on an isolated island. Meanwhile, Hayley and Jeff are saved by the Navy, prompting Jeff to make the decision to enlist. On the other hand, Roger and Steve are left to fend for themselves on a lifeboat adrift in the vast ocean.