In the 1940s, a young boy named Ralphie attempts to convince his parents, his teacher, and Santa that a Red Ryder B.B. gun really is the perfect Christmas gift.

Six years after their last adventure, stoner pals Harold (John Cho) and Kumar (Kal Penn) have grown apart and found new friends. As each is busy making holiday preparations, a mysterious package mistakenly arrives on Kumar's doorstep. Unfortunately, Kumar's attempt to redirect the package to Harold goes up in smoke -- along with a prize Christmas tree belonging to Harold's father-in-law. The pair's journey across New York City to find a replacement tree threatens to blow Christmas Eve sky-high.

Fearless optimist Anna teams up with Kristoff in an epic journey, encountering Everest-like conditions, and a hilarious snowman named Olaf in a race to find Anna's sister Elsa, whose icy powers have trapped the kingdom in eternal winter.