When Lucius and Beezy start squabbling more than ever, Jimmy comes up with a fool-proof plan to unfreeze Heniouses One through Six for an impromptu, rift-healing reunion, but instead of old-fashioned family fun, Jimmy only succeeds in subjecting Miseryville to a half dozen generations of curmudgeonly fury. When Jimmy and Beezy take over the kitchen at `Chez Garbage', guess who ends up doing all the work.

Jimmy comes up with a popular catchphrase that makes Lucius jealous; after Lucius fires Heloise, Jimmy tries making a wish list to cheer her up.

When Heloise posts an embarrassing video of Lucius on `Spew Tube' for all of Miseryville's amusement, it's up to Jimmy to restore the evil leader's villainous reputation. Heloise switches Beezy's and Cerbee's bodies after they crash the picnic she's been planning for Jimmy. Can Jimmy convince her to switch them back before Lucius gets too attached to his industriously destructive new son?

When Jimmy tells Heloise about the magic of snow, she seizes on the opportunity to infuriate Lucius by turning Miseryville into a winter wonderland. However, Lucy gets his way after all when Samy hijacks her `Snow-burator 901' and ensures everyone a season knee-deep in runny noses.

Lucius jacks up the heat in Miseryville in hopes of inducing record-breaking levels on the misery-index, but Jimmy just uses the high temperatures as an excuse to throw a rockin' beach party. Lucius is furious, but when he's gobbled by a sea monster, Jimmy's new surfing skills may be his only hope.

Jimmy mistakenly gets off in the bad part of Clownburg and finds himself hassled by a pack of ill-tempered rodeo clowns. When one of the red-nosed bullies steals his shoe, Jimmy turns to Heloise and her mysterious Power Squid Helmet for help. An emergency at Misery Inc. keeps Lucius from his date with Jez, but when he bribes Jimmy and Beezy to keep her occupied, Heloise gets the wrong idea and attempts date sabotage.