Charlie feels threatened when Kirsten starts spending time with her dissertation adviser.
After an earthquake hits San Francisco, Claudia becomes obsessed with earthquake safety.
Kelly accidentally torches the couch while Peg and Al are away.
Guilt plagues Julia after a friend commits suicide, and Charlie attends a high school reunion.
Casey Kasem (guest starring as himself) chronicles the rise of the rock group Zack Attack. With Mark-Paul Gosselaar.