Squidward Tentacles notices that the neighborhood is unusually quiet, and proposes that SpongeBob is gone for the evening. Back in his house, Squidward tries to relax and watch some smooth jazz on public television, only to be distracted by SpongeBob and Patrick, who emphasize that they are trying to 'enhance' Squidward's evening. Eventually, Squidward lets SpongeBob and Patrick watch with him, only to be bombarded with questions. At last, Squidward is fed up, and leaves Patrick and SpongeBob watching his television.
Departing the neighborhood on his recumber bicycle, Squidward is hit by a truck of cement and flies off into Jellyfish Fields, where he stays for five days. SpongeBob and Patrick are jellyfishing where they spot him, and decide to adopt Squidward, who they think is a wild animal and refer to as 'Smelly'.
Back at SpongeBob's pineapple house, Gary attacks Squidward and SpongeBob determines that it is dangerous for Smelly to remain in his household. Patrick decides to take Squidward under his wing, and plays a game of catch with him at his rock, but ends up calling Animal Control, who come and take Smelly to the zoo. There, SpongeBob is horrified that everyone is treating Smelly so cruelly, so that night, SpongeBob and Patrick break into the zoo and plan to free Squidward. However, they are caught by Animal Control and SpongeBob and Patrick only manage to lose them by going underground.
After a while, Patrick sees light and the gang find themselves in a jungle-like landscape. SpongeBob remarks that the creatures around them look just like Smelly, so they leave Smelly with his real family and return home. The creatures accept Squidward as one of their kind, and as Kelpy G starts playing his clarinet, Squidward's cement cracks open and he simply says to the creatures, "Um...hi."
This episode is similar to "Jellyfishing," where in both episodes, Squidward rides his bicycle to get away from and Patrick and ends up injured and unable to talk. Thus, revealing himself at the end by his uniform cracking open.
However, his name was revealed in the closing credits to this and the sister episode.
When SpongeBob and Patrick were watching TV, the show played the same music in "Rock-a-Bye Bivalve" and Patrick said, "Oh wait! I think I've seen this before. This part's funny." It could be the same show Patrick watched in "Rock-a-Bye Bivalve."
When Squidward is taken in by the other animals at the end, said to Patrick, "But he's with his own kind now, where he belongs, and with that, let us go back to where we belong." This was a reference to the ending of Disney's 1967 film, The Jungle Book.
The unknown creatures (Smellies) are known to resemble Pikmin, from the Nintendo series of games of the same name.