There's trouble brewing in peaceful Glenview, Ohio. That's why four civic-minded citizens, armed with flashlights, walkie-talkies and spiffy new jackets, have teamed up to safeguard their community. But the guys find more than they bargained for when they uncover an alien plot to destroy Earth, and now these bumbling heroes are Glenview's only chance to save the neighborhood and the world from annihilation.

When paleontologist Kate Lloyd travels to an isolated outpost in Antarctica for the expedition of a lifetime, she joins an international team that unearths a remarkable discovery. Their elation quickly turns to fear as they realize that their experiment has freed a mysterious being from its frozen prison. Paranoia spreads like an epidemic as a creature that can mimic anything it touches will pit human against human as it tries to survive and flourish...