When the meduim mammls in the village starts to disappear, SpongeBob, Jimmy, Timmy and B.O.B. suspect the new boa constrictor, Savio.


The Hoboken Zoo has transferred a boa constrictor to the Cartoon World Zoo. SpongeBob, Jimmy, Timmy and B.O.B. report this to the rest of the Nicktoons, but Jenny and B.O.B. suggest that the boa can be nice. The next morning, while entertaining the humans, Private distracts them while SpongeBob, Jimmy and Timmy listen to Jimmy's recorder that Patrick are missing. SpongeBob, Jimmy, Timmy and B.O.B. left where the humans can't expect.

SpongeBob, Jimmy, Timmy and B.O.B. visit Sheen's house. Patrick goes missing until Sheen's overreaction of his smoothie reminds Chester that Sheen asked Patrick to get some pineapples in the Reptile House. SpongeBob, Jimmy, Timmy and B.O.B. enter the Reptile House and find the boa constrictor, Savio. Savio acts innocent. Jimmy finds a keypad that opens Savio's glass cage and while trying to break the locks, it is invulnerable.

At the HQ, SpongeBob and Jimmy look at the map to see if all the locks are locked until they found an air vent. Jimmy informs with Patrick in his belly, it is impossible for Savio to slip through the vent. They hear a scream from Sheen. They come in to his house and Sheen said that Chester was gone in his sleep. They then hear Jenny scream, but when they come in, she was gone. Timmy found a dried snake skin so SpongeBob, Jimmy, Timmy and B.O.B. come in the Reptile House. Timmy tries to explode the locks, but to no avail. Savio continues to act innocent.

At the HQ, SpongeBob, Jimmy, Timmy and B.O.B. realize that Jenny, Patrick and Chester are mammals. SpongeBob then realized that Savio has diet for mammals. At the Toy Shop, they dressed B.O.B. as a monkey as bait. At the zoo outside, Savio begins to crawl by B.O.B., but it was actually just a hose with snake colors. Jimmy tries calling B.O.B., but he just disappeared.

SpongeBob, Jimmy, Timmy and Sheen walk in the Reptile House and accuses Savio again. Savio crawls part of him through the air vent, types the code on the keypad and opens the glass cage. SpongeBob, Jimmy, Timmy and Sheen started running, but Savio catches up and swallows Sheen whole. Inside Savio, Sheen is swooped down to the belly with Jenny, B.O.B. (still in the monkey suit), Patrick and Chester. SpongeBob plans something so he, Jimmy and Timmy started running. They block a trash can on the way, but Savio crawls over it. They block the hotdog stand, but Savio kicks it out of the way. They serpent around tables, but Savio also serpents around. They jump in Burt's habitat at the zoo and Burt beats up Savio. He pulls the pressure by the habitat walls and he vomits the others out.

The next morning, the zookeeper ships Savio back to the Hoboken Zoo (including his tail stuck on the door when the zookeeper shut it).


  • SpongeBob SquarePants
  • Jimmy Neutron
  • Timmy Turner
  • B.O.B. (Benzoate Ostylezene Bicarbonate)
  • Sheen Estevez
  • Chester McBadbat
  • Patrick Star
  • Jenny (XJ-9) Wakeman
  • Savio
  • Fanboy
  • Chum Chum
  • Zookeeper
  • Zoo Visitors
  • Burt the Elephant


  • Zoo Delivery Van


  • Zoo
  • Zoo's Reptile House
  • The Toy Shop
  • SpongeBob, Jimmy, Timmy and B.O.B.'s Headquarters
  • Sheen's house
  • Jenny's house
  • Nick-Ville
  • Burt's Habitat


List of mammals, got eaten by Savio:

  • Patrick Star
  • Chester McBadbat
  • Jenny (XJ-9) Wakeman
  • B.O.B. (in monkey suit disguise)
  • Sheen Estevez

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