当身怀超人能力的实验金属人落入坏人之手，和平就变得岌岌可危。凯尔拥有终极战斗武器——具备超人能力的金属人，他用金属人扬善惩恶。恶魔变成机器人武士，金属人棋逢对手，一场恶战就要开始。

Based on a DC Comics hero created by Robert Kanigher and Ross Andru in 1962, "Metal" revolves around a brilliant scientist, William Magnus, and his creations: six highly advanced robots who have powers associated with their respective metals -- gold, iron, lead, tin, mercury and platinum. Instead of having to be programed, the Metal Men can think for themselves, which is both their genius and their biggest flaw.