Adventure Time - 101 - Slumber Party Panic - Trouble in Lumpy Space

Season 1, Episode 1A: Slumber Party Panic
Finn and Princess Bubblegum must protect the Candy Kingdom from a horde of candy zombies they accidentally created.

Season 1, Episode 1B: Trouble in Lumpy Space
Finn must travel to Lumpy Space to find a cure that will save Jake, who was accidentally bitten by Lumpy Space Princess at Princess Bubblegum's annual 'Mallow Tea Ceremony'.