Zombie lunatics are attacking the city in broad daylight! Grab your SWAT weapons and let's grind some zombies into ground meat. You must protect the city, and above all, the president!
Lt. Alex's space ship is damaged so he had to eject to land on a space platform. He knows that these platforms have some sort of intergalactic portals that can get him to his base. He resides on you to help him find it!