Four boyhood pals perform a heroic act and are changed by the powers they gain in return. Years later, on a hunting trip in the Maine woods, they're overtaken by a vicious blizzard that harbors an ominous presence. Challenged to stop an alien force, the friends must first prevent the slaughter of innocent civilians by a military vigilante ... and then overcome a threat to the bond that unites the four of them.

Pretty, popular, and slim high-schooler Aly Schimdt had plans of earning a sports scholarship to college but a knee injury ruins her chances. She decides to enter a documentary contest in the hopes of winning money for college. She believes that overweight people, like her mom and brother, seem to make excuses about how the world perceives them. So Aly decides to attend a rival high school as a heavily overweight person for the documentary, but not change her personality. Aly intends and hopes to prove that personality will outshine physical appearance. But when she's met with ridicule, harassment, and name-calling she begins to see things differently.