At the start of the episode, the sheep are sleeping peacefully in their field at Mayor Len's house. However, Bonkers appears, asking where Kirby is soon after he appears. The Cappies do not respond, and Bonkers accidentally smacks them with his hammer on his way out. King Dedede gets word of Bonkers when his lackey, Escargoon, warns him about it.
Kirby is sitting by the river, not noticing someone coming up behind his back. Bonkers calls him over, but King Dedede and his minions arrive in their limousine. Bonkers smashes them out of the way.
The group drives off, exploding at a far distance. Bonkers then reveals who he is to Kirby, and reveals himself to be one of Kirby's biggest fans. After a while, King Dedede and Escargoon arrive, and they demand that Bonkers smash Kirby. Bonkers refuses, and King Dedede tries to crush Kirby with a boulder. Bonkers uses his hammer to deflect the boulder, wanting to save his hero. King Dedede and Escargoon then kidnap Bonkers and take him to the Castle, where Night Mare Enterprises transforms Bonkers into a monster, which Tokkori warns everyone about.
Just before she can get to know what is happening, a demonic Bonkers grabs Tiff. Kirby uses the Warp Star that Tiff summons in order to get the hammer, transforming into Hammer Kirby. Kirby defeats Bonkers, and the ape reverts to his normal self and King Dedede and Escargoon get crushed as retribution.
Bonkers waves goodbye and heads off into the sunset, looking at his photo of Kirby. Kirby does the same, and jumps into the air with glee, ending the episode.
- Curio speculates that Bonkers hails from a planet run by apes, referencing the film Planet of the Apes, during a scene in Doctor Yabui's clinic.
- This is the second time King Dedede asks that Night Mare Enterprises to turn someone or something into a monster. The first instance is in The Flower Plot, with Lovely.
- The scene where Bonkers climbs on top of Castle Dedede in his monster form is a reference to King Kong. The way Kirby fights Bonkers is another reference, and Bonkers's defeat and reformation is a reference to the end.