The clip opens on the same scene as the teaser, at Alan's (Zach Galifianakis) father's funeral. This trailer expands on those proceedings, showing a shirtless Alan shoveling dirt onto the grave, sipping a can of Tab. The rest of the Wolfpack -- Stu (Ed Helms), Phil (Bradley Cooper), and Doug (Justin Bartha) -- are worried about their pal, and stage an intervention to send him to rehab.
But those plans go awry, as they're sidelined by a group of bad guys headed by John Goodman, on the hunt for Mr. Chow (Ken Jeong). That set-up fuels the rest of the clip, as the Wolfpack have to hunt down Chow or face Goodman's wrath.
Despite the serious stakes of that plot, the clip is still packed with great gags, including Alan and Chow discussing their friendship ("Bad things happen and people get hurt." "Yeah, that's the point. It's funny."), and Chow parasailing over Las Vegas while singing "I Believe I Can Fly."
Expect "The Hangover III" to be a wild ride. It all ends May 24.