Aqualad, Wonder Girl, Kid Flash and Speedy are alerted to an invasion of a giant, monstrous robot. The team attacks the creature from the air, land and sea and find that it was unleashed by an invasion platform from an alien race. The Titans take on an army of robots and destroy the alien base.
An alien ship tries to leave Earth but is losing altitude. In despair, the aliens unload several boxes, including a cage of three beasts. The Teen Titans rush to stop the beasts before they harm anyone. After defeating the first two, the team encounters the alien ship which has come back to retrieve their lost beasts. After defeating the last one, the interplanetary hunters thank the team and take their leave for good.
Speedy and Aqualad, testing the new Titans Copter, are forced down in a remote outpost in northern Asia. At the same time, they have discovered a frightened boy named Terry Carter, the son of a missing explorer. Following the boy, the two Titans find that the boy's father has been captured by a tribe of throwbacks, and get captured as well. Worried about their teammates' disappearance, Wonder Girl and Kid Flash speed to the signaled area of the boys' last position, and Kid Flash is quickly able to restore Speedy's bow and quiver to him. Reunited, the Titans free everyone and make their escape with father and son, and they agree never to reveal the location of the tribe
