The Hangover is a series of three American comedy films created by Jon Lucas and Scott Moore, and directed by Todd Phillips. All three films follow the misadventures of a quartet of friends (also known as "the Wolfpack") who go on their road trip to attend a bachelor party. While all of the films finds three of the four men on a mission to find their missing friend, the first two films focus on the events following a night of debauchery before a party in Las Vegas and Bangkok; whereas the third and final film involves a road trip and a kidnapping in lieu of a bachelor party. Each film in the series focus on how the friends trying to deal with the aftermath of their antics while they are being humiliated and occasionally physically beaten up at every turn. The films were released from 2009 to 2013, and have grossed a collective total of $1.4 billion in the United States and worldwide.