Adam Bitterman

The entire squad are tested when a helicopter crash causes chaos in the city. Amid the devastation, Brett gets cornered by a dangerous man with a gun.

A man (guest star Matthew Perry) donates a kidney to his ailing father (guest star John Bennett Perry).

In the season finale, after learning the identity of the person who is responsible for the bus crash, Veronica hurries to warn others but ends up putting herself in an extremely perilous situation. Meanwhile, Keith enlists Veronica's help in his ongoing investigation of Woody (recurring guest star STEVE GUTTENBERG), asking her to go undercover and get some vital information from Woody's lawyer. Later, when graduation day finally comes around, Neptune seniors celebrate with a huge party at the Neptune Grand. Recurring guest star HARRY HAMLIN appears as Aaron Echolls; recurring guest star TINA MAJORINO appears as Mac; and recurring guest star CHARISMA CARPENTER appears as Kendall.

Willow, Oz and Xander convince Buffy to join them at a fraternity Halloween party, and Giles tries to catch the holiday spirit.

Weevil enlists Veronica's help in finally proving who killed Felix and bringing that person to justice. Meanwhile, Logan wins an essay contest and gets to serve an internship with Mayor Woody Goodman (recurring guest star STEVE GUTTENBERG) as his honorary deputy. Also, love is in the air at the Sadie Hawkins dance as sparks fly between former couples.