On Earth, the great, main war between the Green Nation and the Tan Republic has whittled down to skirmishes and recon missions for both sides, leaving the soldiers little to no new action or unknown combat factors. Recognizing they must take the war to the Alien homeworld if they have any hope of survival, Sarge and Tina gather their remaining troops and, upon discovering a portal generator to the homeworld, secure it against Tan and Alien forces and use it to travel into outer space, where Tina and the other Space Rangers are engaged in war with the Aliens.