Penn doesn't want to celebrate Christmas because his parents won't be there. However, he is sent to the North Pole to fill in for Santa Claus to save Christmas.

Exhausted from recent missions, Penn is relieved when he is zapped into a seemingly ordinary job as a food court employee in a mall, but it turns out that Penn and his team are in an alternate world where a zombie apocalypse is taking place.

When Penn, Boone, and Sashi are zapped into a clown world as clown cops, Sashi must tap into her silly side to save the mission.

Penn becomes concerned that Sashi takes her role as sidekick too seriously. Meanwhile, he and his team are zapped into a new world as spaceship heroes to save a starship from destruction, but the mission is complicated when Sashi accidentally turns Penn into a weird space animal.

When Penn discovers that Phyllis is trying to locate the Most Dangerous World Imaginable to bring his parents back to Middleburg, he takes matters into his own hands leading to catastrophic results.