Aliens decide that our planet will make a nice place for them to set up shop.

They want the planet.

They start taking over the streets, eating people and what not.

They begin to disguise themselves as humans.

3 special agents are called into the case.

Gordon, your typical rough and tough bloke.

Gordon has a fetish for plasma.

A girl, whose name is Karla.

She likes to play with fire, being equipped with flamethrowers and things.

Then there is Scooter.

Scooter is a robot.

He likes to use himself as a weapon.

Scooter is actually equipped with all sorts of weapons in his various limbs.

The fate of the city is in your hands, and the citizens are counting on you, don't let them down!