After his brush with violent crime, Dylan becomes obsessed with self-defense. He purchases an illegal gun and makes several trips to the shooting range. Meanwhile, Brenda and Stuart introduce their parents to each other over lunch in Bel-Air. Brandon is recruited by his sociology professor, Corey Randall, to tutor the university's basketball star, D'Shawn Hardell. Andrea and Dan mull over going public with their affair.

Brenda is furious when she finds a prenuptial agreement in Stuart's briefcase, but she grows even angrier when she discovers a plot by her own parents to break up her engagement to Stuart. Brandon continues seeing Lucinda and is shocked to discover that she's married... to Professor Randall. Steve goes on a double date with one of his frat brothers... but the date doesn't include Celeste. Meanwhile, Jackie sues Mel for full custody of Erin which causes tension in the beach apartment between David and Kelly.