Together they captured the Legion of Super-Heroes and attempted to blackmail R. J. Brande, but they ended up foiled by Shrinking Violet.
•
He has been working with Imperiex when it came to stealing items and has been pursued by Nemesis Kid (who was pursuing Grimbor on behalf of the Science Police) and the Legion of Super Heroes.
Shortly thereafter, Grimbor the Chainsman erects a network of chain-like energy beams around the Earth.