After the death of Allen's father (Zach Galifianakis), the group decides to make a hellish plan to get him out of his ordeal and find a solution to his psychological problems. But when Doug (Justin Bartha) is kidnapped,they must come together to save him.
For the third and final "Hangover," there's no wedding, no bachelor party. What could possibly go wrong? But when the Wolfpack hits the road, all bets are off.
There is no wedding or bachelor party this time. One of their own is kidnapped. What will the Wolf Pack do?