Superman and Martian Manhunter are abducted by extraterrestrial slave traders and are sold to a planet of the despotic ruler Mongul where the population spends its time watching aliens in mortal combat in an enormous colosseum. Green Lantern and Hawkgirl set out to rescue them.
* BreadAndCircuses: Mongul's empire drew obvious parallels to the Roman Empire. The Martian Manhunter finds out there's mass unemployment and poverty, but people are kept entertained by the [[BloodSport gladiatorial games]].
* FinishHim: After Superman defeats Gladiator Draega, Mongul orders Superman to do this. [[TheMessiah Being who he is]], he refuses, even when Draega himself asks him to do so.