PA: Viewer discretion is advised.

STEWIE GOES BACK TO THE FUTURE ON THE 90-MINUTE SEASON FINALE OF "FAMILY GUY" SUNDAY, MAY 21, ON FOX

Jason Priestley, Tori Spelling and Jennie Garth Make Guest Voice Appearances

After a competitive swim lesson, Stewie tries to destroy his rival by blowing up the lifeguard tower. But when his plan backfires and he has a near-death experience, Stewie turns to the bottle to numb himself. A bizarre chain of events leads Stewie and Brian on a road trip to San Francisco, where Stewie confronts a guy he believes is his real father. But when it turns out he's actually Stewie in the future, Stewie gets a glimpse of his dismal adult life and realizes he must return to his own time and rewrite history. Meanwhile, Peter's rants on everyday irritations become a new hit segment on the Quahog Nightly News in the "Stewie B.Goode"/"Bango Was His Name-O"/"Stu & Stewie's Excellent Adventure" episodes of FAMILY GUY Sunday, May 21 (8:30-10:00 PM ET/PT) on FOX. (FG-405/406/407) (TV-14 D, L, S, V)

Voice Cast: Seth MacFarlane as Peter Griffin, Stewie Griffin, Brian Griffin, Quagmire, Bugs Bunny, Michael Chiklis, Roger Moore, Steve Allen, Tom Tucker, Wilford Brimley, Hadja, Superman and Walt Disney; Alex Borstein as Lois Griffin, Barbara Streisand, Rosanne, Sarah, Andrea, Tricia, Vanessa, Condaleeza Rice, Fran and Wonder Woman; Seth Green as Chris Griffin and Kurt Cobain; Mila Kunis as Meg Griffin; Mike Henry as Cleveland and Cleveland, Jr.

Guest Voice Cast: Rory Thost as Brad and Casper; Phil Lamarr as Detective Scrotes and Ollie Williams; Lori Alan as Diane; Noel Blanc as Elmer Fudd; Johnny Brennan as Horace; John Viener as Indiana Jones and Nick Nolte; Rachael MacFarlane as Kate Capshaw and Britney Spears; Kate Rigg as Lara Flynn Boyle; Kevin Michael Richardson as Young Ray Charles; Jason Priestly as Brandon; Tori Spelling as Donna; Jennie Garth as Kelly; Fred Tatasciore as Ernest Hemingway and Van Gogh; David Goodman as Jesus and Patrick Warburton as Joe.

[EDITOR'S NOTE: MALCOLM IN THE MIDDLE, KING OF THE HILL, THE WAR AT HOME and AMERICAN DAD are preempted this night.]