The Hangover Part III Trailer Debuts - The Wolfpack Heads Back To Vegas!

'The Hangover Part III' 'The Hangover Part III'

The wolfpack is back – and they’re heading back to where it all began!

The new trailer for “The Hangover Part III” debuted on Thursday, showing Bradley Cooper, Ed Helms and Zach Galifanakis returning to Las Vegas.

“I told myself I would never come back,” Ed Helms’ character, Stu, says in the trailer.

WATCH: The New Trailer For ‘The Hangover Part III’

Also included in the trailer, the usual “Hangover” antics, complete with wild animals, pig masks, prison riots, and what appears to be the funeral of Jeffrey Tambor’s character, Sid (the father of Zach’s character, Alan).

In addition to the new trailer debut, a new poster for the movie recently released shows Zach Galifianakis’ Alan facing off against Ken Jeong’s Leslie Chow against the backdrop of a fiery Las Vegas strip in ruin, complete with the tag line “It All Ends” and “The Epic Finale to ‘The Hangover’ Trilogy.”

PHOTO: Zach Galifianakis & Ken Jeong Face Off In New Poster For ‘The Hangover Part III’

Another familiar face also joining the gang for the film (although not featured in the trailer) will be Heather Graham, who will reprise her role as stripper-with-a-heart-of-gold Jade for “The Hangover Part III.”

“Something good happens to me in [‘The Hangover Part III’],” she revealed to Billy Bush and Kit Hoover on Access Hollywood Live back in September. “So, it’s good to know that something good happens to Jade!”

Also returning? Carlos!

“The baby’s back,” she added, referencing her character’s son, Tyler, who was nicknamed “Carlos” by Zach’s Alan in the 2009 hit.

Over the summer, prior to production kicking off for the new film, Ed Helms said he was excited to dive back into the “Hangover” hijinks with his big screen pals.

“When you read on the page, ‘This crazy thing happens to these guys…’ to me, I’m reading, ‘Oh, this is something really fun I get to do with my buddies,’” Ed told Access at the time. “It’s like the most fun thing in the universe to make those movies, so we’re gonna crank up again and see what happens.”

WATCH: Ed Helms Dishes On Making ‘The Hangover Part III’

The first two installments have grossed more than $1 billion worldwide, with 2009’s “The Hangover” taking in $467,000 and 2011’s “The Hangover II” hauling in an impressive $581,000.

“The Hangover Part III” is slated to hit theaters Memorial Day weekend.

-- Eric Anderson

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