Every family has a different tradition, and a different way to spend the holidays. But there's one thing that three different families of YouTube personalities have in common, and that's that each oldest son no longer enjoys Christmas like he used to. When a magical train comes to whisk their siblings away, the three boys go along and discover what Christmas is all about.

Five ordinary college kids: Erika, Miranda, Sam, Kris, and Graham, think that the worst thing they're going to have to deal with right now is college. But when each slowly discovers that they're being supervised by a so-called "intelligence organization," by the name of SHIELD, they realize that life is about to get a lot more hectic than the college lifestyle.

The Liars' hunt for A takes them to the small town of Storybrooke, Maine, where magic becomes science and legend becomes reality. Are the Liars really safe here in Maine, or is this all just an illusion? Six parts, based on events from "Once Upon a Time" and "Pretty Little Liars."