Mad half human controller of an army of toxic robots.

The US military builds a line of remotely operated warbots, using toxic and radioactive metals. The metals thus have a use, and the enemy is confronted with a foe all the more deadly. Jeremy Denton, expert operator of the warbots, seeks to reprogram the electronics for his own nefarious purposes, he sneaks into the facility... but in a battle with a guard, both are covered with molten metal, melding with the robotic skeletons, becoming something neither robot nor fully human. Jeremy becomes Deathmetal, while the guard becomes... the Green Anvil.