The Dark Side Club collects numerous super powered teens to fight in the arena for others entertainment. The Terror Titans were hired to attack the Teen Titans and other young meta-humans only to capture and sell them to the club. Some of the many teens captured include: Fever, Misfit, Black Alice and Kid Devil. The teens are taken by tranq darts and are drugged with Granny's "Medicine" to have amazing hostility to each other.

The Clock King eventually takes over the Dark Side Club and forms the Martyr Militia with the brainwashed survivors in order to spread terror and chaos.

Contenders of the Dark Side club so far

• Kid Devil (rescued)
• Miss Martian (rescued)
• Misfit (rescued)
• Black Alice (rescued)
• Ravager
• Fever (killed)
• Aquagirl (rescued)
• Offspring (rescued)
• Terra (rescued)
• Molecule (killed before being captured)
• Star-Spangled Kid (beaten but spared, Miss Martian in disguise)
• Zatara (rescued)
• Pristine
• TNTeena (killed after tournament)
• Gypsy
• Hardrock (rescued)
• Young Frankenstein (rescued)
• Son of the Fallen (rescued)
• Poprocket (rescued)
• Sapphire (rescued)
• Argent (rescued)
• Static (rescued)
• Natasha Irons (rescued)
• Amazing Woman (rescued)
• Empathy (rescued)