The Injustice League was a team of meteor freaks and antagonistic faction in the CW Television series Smallville. Their main objective was to find and destroy Doomsday to protect the Traveler.
When Tess Mercer took control of LuthorCorp after Lex Luthor vanished, she shut down several facilities that were related to Level 33.1 including one in Montana called Black Creek but many meteor freaks had escaped. She decided to find and recruit them to form a team of heroes to fight for the human race. Mercer had them trained to become a team, to look out for each other.
Tess first tried to recruit Bette Sans Souci who had escaped the Black Creek facility, but instead she blew up the bus with Tess was on. After Bette was captured, Tess and her team intercepted the prison transport and once again offered her to be part of a team with other special people like her. Bette agreed to join the group so she wouldn't go to Belle Reve.
When a serial killer began killing people in Metropolis, a copycat decided to join in on the action and killed several meteor infected people. It was revealed that the imposter was Randy Klein who was stopped by Clark Kent and arrested by the police. Tess had sent her assistant Eva Greer to recruit Randy to join their newly formed team otherwise she'd blackmail him by providing evidence that he wasn't the real killer.
Overtime the team recruited Leslie Willis, Rudy Jones and Nathaniel Tyron who went on their first field mission to hunt down Doomsday and goad Clark Kent into battling the monster. Eva Greer posed as Chloe Sullivan and ran through the woods pretending someone was after her while she screamed for Clark's help. Then, as she stands on a road frozen in the lights of an oncoming truck, Clark super speeds in and saves her before she gets hit. Unknown to Clark, they were being watched by Livewire, Plastique, Parasite and Neutron.
Under no circumstances were they to confront Doomsday themselves. But, Livewire and Neutron found themselves confronted by the beast, while the other members were elsewhere.
- Livewire possessed the ability to manipulate and project electricity.
- Neutron was capable of generating and projecting nuclear radiation.
- Eva Greer was the personal assistant to Tess Mercer and a shape-shifter.
- Plastique had the ability to project high-frequency energy blasts in the form of explosives.
- Parasite has the ability to steal other metahumans' powers at will.