Phyllis Diller plays Grandma Titus, who still intimidates Ken despite her Alzheimer's, which has her trying to teach a high-school class.

Tired of carrying Dave, Titus decides it's finally time he learns to fend for himself--when they're both stranded on an icy cliff.

Titus aims to throw a scare into a boy who's been insulting Amy and nearly gets himself thrown in jail, but for the intervention of Erin--and the offender's father.