Three best friends - a self-called wolf pack - head to Las-Vegas to enjoy what's shaping up to be an unforgettable bachelor party. Obviously, the fellas are hyped up, and they even take Alan, a weird-yet-kind-hearted lad along for the ride. Little did they know that this trip would change their lives forever and define their future. After a wild night, the friends wake up to find that Doug is missing, and there is all kinds of weird sh*t happening around. The clock is ticking, and it's imperative for the gentlemen to put the puzzles together if they want to find the guy and save the clique from total embarrassment, not to mention avoid attention from the cops and get back home safe and sound.