莱斯利·尼尔森,理查德·克里纳,凯莉·勒布洛克,美琳达·麦格劳,麦克尔·约克,桑德拉·伯恩哈德,艾伦·坡尔,本杰明·拉特纳,杰拉德·普伦科特,邓肯·弗雷泽,John Walsh,Chick Hearn,玛丽·布莱克,阿莱克斯·迪亚坤,阿德里安·多瓦尔,埃莉·哈维,Charles Payne,帕特·普罗夫特,薇娜·苏德,比尔·塔尔林,Shari Lewis
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.