Jellyfish Jam

A jellyfish insists on following SpongeBob home after a day out at Jellyfish Fields, so SpongeBob decides on keeping it as a pet at his home. Squidward warns SpongeBob that jellyfish are wild animals and that they should not be domesticated, but SpongeBob completely ignores him. At home, SpongeBob dances with the jellyfish to loud techno rave music, which annoys Squidward to no end. After 12 hours of this form of nonstop partying, SpongeBob finally decides that it is time to go to bed, but this Jellyfish does not want to stop. SpongeBob eventually forces it to go to bed by tying a leash around it and ties it to his bed. Gary tries to tell SpongeBob he shouldn’t be keeping a wild animal, but SpongeBob doesn’t listen. During the night, while SpongeBob sleeps, the jellyfish escapes and brings lots of his friends into his house.

The next morning, SpongeBob wakes up to find his living room filled with hundreds of dancing jellyfish. He attempts to make them leave, but to no avail. Squidward, annoyed that the music has been going on for 18 hours and has not been able to get any sleep all night, angrily calls SpongeBob on his conch phone to tell him that he's had enough of the loud music. A jellyfish picks it up and sprays him with jelly over the phone. Irritated, Squidward decides that "two can play at this," and starts loudly playing his clarinet, angering the jellyfish with his terrible playing, who start destroying SpongeBob's house. SpongeBob asks Squidward to play his clarinet a little "better," as an insulted Squidward sarcastically responds this request. However, Squidward intentionally starts playing even worse and much louder with megaphones and a microphone. This prompts the jellyfish to angrily go to his house, as he cowardly tries to promise to stop playing, but they sting him before returning to SpongeBob's house. A sting-covered Squidward says to SpongeBob "Everybody's a critic. You won't be hearing from me anymore," and gives him his clarinet before leaving. The jellyfish hastily take it from SpongeBob, break it in half, burn it, and dance around it.

This further angers SpongeBob, who attempts to remove the stereo system, destroying it in the process, and the infuriated jellyfish begin stinging and chasing him. SpongeBob and Gary go up to the roof of the house, but the swarm follows them outside and surrounds them. SpongeBob tells Gary that he was right. Then Gary drives them away by clicking his eyes together, producing a sound that calms the Jellyfish. SpongeBob tells Gary to keep doing this, and puts him on his head. SpongeBob walks downstairs and out the front door, with the Jellyfish following him. As he leads them back to Jellyfish Fields, more sounds join Gary's clicking, eventually becoming a full-fledged song. Taking advantage of how the Jellyfish are now distracted, SpongeBob quickly flees the area with Gary.

In the last scene, SpongeBob shakes with Gary as the French narrator declares: "Today SpongeBob has learned one of the sea’s harshest lessons; wild animals can throw very wild parties." Then the severely stung Squidward is shown settling into his bathtub to recover from his stings.