Eternal Champions: Challenge from the Dark Side is a Sega CD game featuring nine fighters, unjustly killed across different time epochs. Provided a second chance by the extraterrestrial Eternal Champion, these combatants are reinvented for a competition to circumvent their fates and balance virtue and vice. The ensemble includes Earth-dwellers like Larcen the thief, Jetta the acrobat, Blade the bounty hunter, Midknight the vampire bio-chemist, Rax the cyborg, Shadow the assassin, Slash the Neanderthal, Trident the Atlantean warrior, and Xavier the alchemist warlock.
From various time periods of past, present and future, nine fighters killed in an unjust manner find themselves given a second chance for life. An alien being, known only as the Eternal Champion, brings back the fighters into a competition for one reason: to find one among them worthy of being resurrected, giving them a chance to avert their death and tip the balance between good and evil.
The fighters range from different eras of Earth's History: Larcen, the cat burglar. Jetta, the circus acrobat. Blade, the futuristic bounty hunter. Midknight, the vampiric bio-chemist. Rax, the cyborg. Shadow, the corporate assassin. Slash, the neanderthal. Trident, a Atlantean warrior. And Xavier, a warlock and alchemist.