Plot Summary:Planet Patrol agent Mogyar allies with a team of human planetary guardians to stop the plans of evil galactic overlord Lord Doom when he sends a gargantuan monster called Kraa to destroy the Earth.
为侵占地球,躲在黑暗星球的黑大帝派身高250英尺,破坏力超强的巨龙卡袭击地球。卡所到之处,繁华的城市瞬间成为废墟,人类素手无策。而前来阻止卡的银河卫士莫也却被警察误抓,能战胜黑大帝和巨龙并拯救地球的,只有四位银河战士。但他们的飞船也受到黑大帝袭击,能源被破坏,无法行动........