SpongeBob SquarePants - Season 5 Episode 6 -

Roller Cowards: The scariest roller coaster ever has just opened at Bikini Bottom's amusement park. At first SpongeBob and Patrick are determined to ride this monster coaster. But the more they think about how scary it is the more they chicken out. Bucket, Sweet Bucket: Plankton tricks SpongeBob, Patrick and Squidward into fixing up the Chum Bucket with a series of sob stories.