Six years have elapsed since Guantanamo Bay, leaving Harold and Kumar estranged from one another with very different families, friends and lives. But when Kumar arrives on Harold's doorstep during the holiday season with a mysterious package in hand, he inadvertently burns down Harold's father-in-law's beloved Christmas tree. To fix the problem, Harold and Kumar embark on a mission through New York City to find the perfect Christmas tree, once again stumbling into trouble at every single turn.

With the world now aware of his dual life as the armored superhero Iron Man, billionaire inventor Tony Stark faces pressure from the government, the press and the public to share his technology with the military. Unwilling to let go of his invention, Stark, with Pepper Potts and James 'Rhodey' Rhodes at his side, must forge new alliances – and confront powerful enemies.