Pickles decides to quit smoking, but she replaces one addiction with another when she channels her nervous energy into becoming a reckless thrill-seeker. Her decision comes much to the dismay of Bob, who worries about her safety, and Milo, who resents her unseating him as the crazy one in the family.

Milo runs for school president against Debbie Klimer, leader of the snobby Debbies, and he loses -- but then his opponent suffers a freak accident. The Klimer family fakes young Debbie's death while she goes under the plastic surgeon's knife, but the operation is less than successful and Debbie returns looking like The Phantom of the Opera. Shunned by her upscale family and friends, The Oblong clan and the valley kids take in the reject Debbie as one of their own. But when Debbie's cheerfulness starts getting on everyone's nerves, the valley kids turn to the freakish school nurse to get Debbie back with the in-crowd.