In the near future, aliens have invaded Earth and declared a galactic war resulting in thousands of human casualties. To save Earth, a team of four teenage astronauts brave the alien wilderness of a distant planet to stop an assassin from changing the course of history forever.
一名雇佣军受雇夺取一把能将人变成凶残杀手的武器,而在兄弟成为这一装置的受害者后,他决定展开复仇。