Episode Title:
Be Careful What You Fish For.
Episode Description:
When Peter and the guys try to salvage a sunken Mercedes-Benz, Peter half-heartedly promises a favor to a helpful dolphin (guest voice by Ricky Gervais). Soon, the dolphin moves to Quahog but outstays his welcome at Peter's, so Peter tries to reunite the dolphin with his ex-wife (guest voiced by Lucy Davis) in hopes that he will return to the ocean. Meanwhile, Stewie is attending a pre-school with an incompetent teacher.
