Legion of Super-Heroes [Lightning Lad; Saturn Girl; Mon-El; Princess Projectra; Karate Kid; Colossal Boy; Star Boy; Wildfire; Shrinking Violet; Cosmic Boy; Duo Damsel; Blok; Phantom Girl; Bouncing Boy; Shadow Lass; Light Lass]; Reflecto [revealed to be Superboy]; Grimbor the Chainsman; Marte Ida Allon
Synopsis
Grimbor's Cosmic Chains continue to constrict Earth's atmosphere but the Legion finally defeats him with the help of Reflecto, whose torn costume reveals a red "S" underneath after he collapses.