Jimmy Turkelson, a relatively insignificant and always scared seventh grader, spends his days at Tower Middle School evading bullies and trying to avoid notice; a mouse hiding in the shadows when everyone feels like a cat. But when the Zanthoid spaceship lands outside his school, everything changes.

It is the first wave of the attack. The aliens are invading so they can take every drop of water from Earth. Those who survive the unwinnable war will be left to perish on a barren wasteland after the Zanthoids finish stripping the planet of its resources. Only Jimmy, a collection of unusual friends, and a friendly alien named Gorgalsheef stand between the Zanthoid Empire and the destruction of Humanity.

But when Jimmy comes face-to-face with the vicious alien commander, Kralwak, will he coward and run away, as Jimmy usually does, or will he stand and fight to save the world?

HAS HUMANITY MET ITS END?