After a dodgeball game at school, Nordle invites Gretel and Bailey to his house for dinner. Bailey is dubious about Nordle's intentions due to the previous times he'scaused trouble around her, but the girls visit him nonetheless. Unbeknownst to them, however, Professor Exclamation, La Cebolla, The Nightmarionette, and The Earworm are meeting to discuss how to defeat Hamster and Gretel. When Nordle comes across the villains' meeting, he desperately attempts to prevent Gretel and Bailey from finding out. However, when Bailey excuses herself to use the bathroom, she runs into La Cebolla and realizes that the villains are plotting revenge.
Gretel and Bailey eavesdrop on the villains, but they are quickly discovered, after which Professor Exclamation orders Tobor to attack them. When Nordle's attempt to convince his father not to erase their memories fails, the children defeat La Cebolla, The Nightmarionette, and The Earworm by performing a dodgeball move they attempted earlier. This then allows Professor Exclamation to continue his plans, only for Gretel to outsmart him by regarding his ability to incapacitate the other villains as heroic, which then activates his anti-superhero defense system and flings him to the Arctic. Bailey, having realized that Nordle is not evil, invites him and Gretel to her house for dinner.
