Insect-like aliens invade a small town. The local teenagers have been watching a sci-fi marathon in the local theater, and from those films they get ideas on how to fight the creatures.

An intergalactic fighting competition between champions of various worlds has traditionally been won by a species much larger and stronger than humans. Entering the contest, a human finds he has to battle against not just his opponents and his self-doubts, but the corrupt system. Far in the future, on a distant space station, the legendary Arena is where the best fighters from every planet come to vie for the championship. But for over half a century, no Earthling has been good enough to be a contender. Until out of nowhere, comes an underdog: the great human hope, Steve Armstrong... and the best anyone's ever seen. He's been training all his life for a shot at the big time, but now he's up against some mighty big muscle: a ruthless extra-terrestrial crimelord who'll pull no punches to make sure he stops Steve dead. In the mood for hard-hitting sci-fi action? Arena will knock you out!