A gangster, Eddie Candell, is framed for a crime he didn't commit. He flees to the desert, only to stumble into a nuclear energy testing site. Eddie is contaminated by radiation and his body begins to transform in remarkable ways. In his new mental and physical condition, he sets out to gain revenge against all those who betrayed him.

References:
https://en.wikipedia.org/wiki/Most_Dangerous_Man_Alive