In the winter of 1982, a twelve-man research team at a remote Antarctic research station discovers an alien buried in the snow for over 100,000 years. Soon unfrozen, the form-changing creature wreaks havoc, creates terror... and becomes one of them.

Low-level bureaucrat Sam Lowry escapes the monotony of his day-to-day life through a recurring daydream of himself as a virtuous hero saving a beautiful damsel. Investigating a case that led to the wrongful arrest and eventual death of an innocent man instead of wanted terrorist Harry Tuttle, he meets the woman from his daydream, and in trying to help her gets caught in a web of mistaken identities, mindless bureaucracy and lies.

宇宙中的某个部族，为了研究宇宙中最恐怖的魔神生物并将其作为自己的战斗武器而捕获了ZEIRAM，然而最终全部研究人员和军队都被ZEIRAM屠杀。于是，在地球的赏金猎人IRIA接到了对ZEIRAM的赏金令……
在本作中，不但有雨宫庆太和竹谷隆之的鼎力制作，包括桂正和也在里卖面露了个小脸，寺田克也等顶级人物也加入了制作中，本作上映后，更是推出了ZEIRAM、Iria战斗装、ZEIRAM最终形态等经典道具为原型的手办，其中大多称为GK爱好者们的圣物，可见造型之棒。剧情基本还是雨宫庆太流特摄片的套路，就不用太多注重了.