WATCH: Sneak Peek of all-new AMERICAN DAD - "Killer Vacation"

AMERICAN DAD: The Smith family's tropical vacation turns out to be anything but relaxing in the all-new Halloween-themed "Killer Vacation" episode of AMERICAN DAD airing Sunday, Oct. 7 (9:30-10:00 PM) on FOX 50. AMERICAN DAD ™ and © 2012 TCFFC ALL RIGHTS RESERVED.

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By FOX50.com

Story Created: Oct 3, 2012 at 5:06 PM EDT

Story Updated: Oct 3, 2012 at 5:06 PM EDT

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The Smith family’s tropical vacation turns out to be anything but relaxing when Stan is assigned a mission to kill the activities director at their resort, whom his boss at the CIA insists is an ex-war criminal.

Meanwhile, Hayley (Rachael MacFarlane) and Jeff (Jeff Fischer) try to rekindle their fading romance, while Roger, as his latest persona, Abigail Lemonparty, falls for an older gentleman in the all-new Halloween-themed “Killer Vacation” episode of AMERICAN DAD airing Sunday, Oct. 7 (9:30-10:00 PM) on FOX 50. (DAD-705) (TV-14 D, L, S, V)

Voice Cast: Seth MacFarlane as Stan Smith and Roger the Alien; Wendy Schaal as Francine Smith; Rachael MacFarlane as Hayley; Scott Grimes as Steve; Dee Bradley Baker as Klaus; Jeff Fischer as Jeff.