A planned evening of debauchery in Las Vegas to celebrate their best friend's wedding goes horribly -- but hilariously -- wrong for five average guys (Kal Penn, Donald Faison, Jonathan Bennett, Charlie Spiller and Aaron Himelstein), who unwittingly hire a bank robber (Vincent Pastore) as their party planner. Now, they've got the police, casino security and a porn star's boyfriend to deal with ... and that's only the beginning of their troubles.