SpongeBob SquarePants - Season 4 Episode 15 -

Squidtastic Voyage: When Squidward swallows his clarinet reed Sandy offers to retrieve the piece by shrinking herself and a mini sub down to microscopic proportions and traveling into Squidward's body. But to Squidward's horror, SpongeBob and Patrick accidentally end up in the mini-drivers seat of the sub and continue the mission on their own. That's No Lady: A misunderstanding over a vacation getaway advertisement causes Patrick to think he must "get out of town" or face dire consequences. SpongeBob can't bear the thought of his best buddy moving away, so he decides ...