When a lab experiment goes wrong, Benjamin Knight is left invisible while his scientist friends trying to find a formula that will restore his visibility to last the rest of his life.

In his hidden laboratory deep in Russia, Dr. Karl Zimmer has invented the Mandroid, a humanoid robot which follows the motions of a man in a special control suit. He has offered the invention to the USA, who have sent Smith and Wait from the CIA for inspection. However Zimmer's partner Drago has different plans, wants to sell Mandroid to the military. The night he tries to steal Mandroid, he becomes exposed to the highly toxic Superconn. But he can flee and won't give up on Mandroid, even though he's terribly disfigured.