Stu (Ed Helms) is getting married. Along with Doug (Justin Bartha), Phil (Bradley Cooper), and his soon-to-be brother-in-law Teddy (Mason Lee), he regretfully invites Alan (Zach Galifianakis) to Thailand for the wedding. After a quiet night on the beach with a beer and toasting marshmallows by the camp fire, Stu, Alan and Phil wake up in a seedy apartment in Bangkok. Doug is back at the resort, but Teddy is missing. Additionally, there's a monkey with a severed finger, Alan's head is shaved, Stu has a tattoo on his face, and they can't remember any of it.
"The Hangover" has carried over to Thailand. Blair Herter sits down with Bradley Cooper, Ed Helms, Zach Galifianakis, Ken Jeong and others to shake out the cobwebs.