Episode Title:
What Is Life? / Ocean of Fear
Episode Description:
What Is Life?: Finn builds a Never-Ending Pie-Throwing Robot (N.E.P.T.R., voiced by Andy Milonakis) to pull a prank on Jake, but the machine's conscience is conflicted by the will of the Ice King when he is attacked by a lightning bolt that contained the Ice King's private particles. Eventually, N.E.P.T.R. choose to side with Finn.
Ocean of Fear: While Finn and Jake are playing by the sea, Finn realizes he is terrified of the ocean. The spectral Fear Feaster (voiced by Mark Hamill) taunts Finn about his fear, and Jake determines to help Finn overcome his fear of the ocean by traveling in it with a submarine.
