Zack McGee has grown fond of his troublesome alien buddy, Amp, since he crash-landed his ship through Zack’s bedroom window. They’ve gotten into more than their fair share of trouble together, but they’ve always found a way out of it. Until a fleet of ships from Amp’s home planet filled the sky and threatened to take over Earth.

Now Zack and Amp have to do the thing most kids don’t even dare imagine…save the planet from an alien invasion!