Damon Dran was a wealthy but paranoid businessman who stole a power source developed by the mysterious Project 4 and exposed himself to it, becoming the Indestructible Man. He has clashed with Daredevil and Captain America, among others, but his most persistent foe is the Black Widow.
Dran's indestructibility had "expired" years ago, and he tried to build an armor into his body, and used U.V. lights and pills to keep himself inmortal, while growing paranoid.
He killed numerous ambassors through the terrorist Molot Boga, and when he was pinned down by Black Widow, he captured her. Natasha managed to escape and bring Dran to S.H.I.E.L.D. authorities. While he was being held in a facility, he was killed with acid by a rouge agent.