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。挖酷网（vaacoo.com）提供手机在线免费在线观看宇杀员致力于为观众带来优质的观影体验！