It's twice the underwater hilarity in a double-length feature episode with SpongeBob, Patrick and Squidward as three pioneering sea dwellers in the time before comedy (BC). "SpongeBob Goes Prehistoric" includes a double-length episode plus eight bonus episodes: SpongeBob BC, Nature Pants, Fools in April, I'm with Stupid, Patty Hype, Squid on Strike, The Great Snail Race, Plankton's Arm, and Squilliam Returns.

The movie is currently not available onine