When their quiet beach town is invaded by a mysterious threat, five kids - a gamer, comic book geek, inventor, skater and martial artist - must band together and use an arsenal of homemade gadgets to fight back.

Thirteen-year-old Sprout Grady grows convinced that a monster is haunting the nearby woods. Embarking on a mission to vanquish it, she uncovers horrifying secrets that rock the core of everything she thought she knew.