After SpongeBob, Jimmy, Timmy and B.O.B. finish their latest training course, Eggy breaks into their HQ to hide from his mother. Mama Duck arrives and informs SpongeBob, Jimmy, Timmy and B.O.B. that their training effects on Eggy have grown to a point that the duckling has become dangerously reckless; sending himself on incredibly dangerous "missions" that not even SpongeBob, Jimmy, Timmy and B.O.B. would attempt.
Though perfectly capable of taking care of himself, Eggy, being but a duckling, is not as tough or durable as the penguins and a simple flunk in a mission could get him killed. Mama Duck begs SpongeBob, Jimmy, Timmy and B.O.B. to talk some sense into Eggy to snap him out of his danger craving.
SpongeBob, Jimmy, Timmy and B.O.B. agree. SpongeBob demonstrates the danger of the missions that Eggy is attempting by showing them one of their practice courses...which Eggy aces in less than five seconds flat.
Realizing that there's no talking Eggy out of it; SpongeBob comes up with a lie that all penguins have to earn a "Training License" in order to go on missions, which turns out to be nothing more than a dropped subway ticket, which requires beating every Nicktoons.
Eggy heads off for home. SpongeBob, Jimmy, Timmy and B.O.B. decide to celebrate with temporary tattoos. As they head back to the hideout, they hear a cry from Sheen's house. They find Chester on his back who says he was attacked by an unseen opponent which turns out to be Eggy who attacks Patrick next.
It turns out that Eggy has gone on a berserk rampage around the village beating up Nicktoons in order to obtain his training license. SpongeBob, Jimmy, Timmy and B.O.B. try to talk Eggy out of it, but Sheen recognizes Eggy as S.J. and encourages him to prove himself to SpongeBob, Jimmy, Timmy and B.O.B..
Eggy heads off to complete the trials with SpongeBob, Jimmy, Timmy and B.O.B. in pursuit. As Eggy beats up Zim and GIR, Jimmy realizes that Eggy has inherited every one of SpongeBob, Jimmy, Timmy and B.O.B.'s traits. SpongeBob's gusto, Timmy's strength, Jimmy's brains, and B.O.B.'s adorableness.
In short; they've created a monster. Eggy proceeds to beat up the rest of the village, including SpongeBob, Jimmy, Timmy and B.O.B., and heads of to defeat the last Nicktoon: Sheen!!! Eggy, now totally insane, attempts to defeat Julien.
But Sheen defeats him using the art of dance. Eggy calls Sheen "the greatest Nicktoon of all" and begs him to teach him this new "fighting technique". Sheen happily obliges. Mama Duck appears and is satisfied by Eggy's new hobby and is sure it will keep him occupied enough to keep him safe.
As Eggy leaves he imitates Sheen by calling SpongeBob, Jimmy, Timmy and B.O.B. "silly SpongeBob, Jimmy, Timmy and B.O.B.". SpongeBob prompts Timmy to 'cover their shame', wish for a smoke bomb as the episode ends.
- SpongeBob SquarePants
- Jimmy Neutron
- Timmy Turner
- B.O.B. (Benzoate Ostylezene Bicarbonate)
- Mother Duck
- Sheen Estevez
- Chester McBadbat
- Patrick Star
- Other Nicktoons
- Jenny (XJ-9) Wakeman
- SpongeBob, Jimmy, Timmy and B.O.B.'s Headquarters
- Sheen's house
- Jenny's house