The Metal Men escape from a locked vault and defeat four armed captors, delivering them to Colonel Craven at a military base where Doc Magnus is in conference. Meanwhile, the villain Vox—who sells weaponized prosthetics and plans to expand into providing cyborg soldiers called "Cyboriginals"—learns of his men's capture and decides to abduct Magnus to steal the secret of the Metal Men's shape-changing abilities. When Vox's Cyboriginals attack the base as a distraction, he successfully kidnaps Magnus along with Craven and Iron using a giant electromagnet, while the remaining Metal Men are ordered not to pursue for fear of also being captured.
