Former U.S. Marshall Chase McBride (Gordon Currie) asks Renee Palmer (Jayne Heitmeyer) to meet him at the Flat Planet Café, which he suspects has become a feeding ground for Atavus hybrids. They watch a man lead a female patron into a back alley, where he wields his Atavus cleave and attacks her. As Renee and Chase come to her rescue, a paddy wagon full of government-sponsored deportation commandos speeds onto the scene. The soldiers grab both the hybrid and Chase, who they mistake for a hybrid. Renee is shocked, as Chase makes no attempt to correct the error and is whisked off to a top-secret, government-run prison in which hybrids are brought to feed on each other.

At the prison, the commandos are about to unload Chase and several hybrids, when they are struck by an electrical discharge. Before they can recover, a gang of hybrids attacks them. Chase scurries for cover and contacts Renee via global communicator. Renee rushes to meet with FBI Director Hubble Urick (Frank Moore) to ask for help. He refuses, however, telling her that since the prison is top secret, he can't get involved. She decides to attempt a rescue on her own.

Back at the prison, one of the hybrids is killed by their leader, Smoke (Kim Coates), who is furious that his comrade didn't extract the codes from his last victim and shut down the energy barrier that has sealed the facility. Meanwhile, Renee sneaks into the prison and meets up with Chase. He admits he allowed himself to be captured in order to kill Smoke, who had murdered his wife and parents. They search for Smoke, but their quarry and his gang find them first. As Renee and Chase are held at gunpoint, Renee deploys an energy grenade, creating enough of a diversion for them to run for cover. Chase is able to escape, but Renee is captured. She is brought to a small second-story room and tied up, while Smoke searches through her belongings and finds her portable portal.

Smoke is about to kill her when Chase bursts through the door and pushes the villain over a railing to the floor below. When Chase and Renee look down on "little brother."

Pressed by Renee, Chase tells her that Smoke is indeed his brother, but he still remains intent on avenging his family's death. Renee tries unsuccessfully to convince Chase that as a hybrid, Smoke had very little control over his actions when committing the murders. They then devise a plan to escape the facility. The two decide to use the commandos' truck to smash into the perimeter energy barrier, weakening it long enough for Renee to use her portal.

Renee starts up the truck just as Smoke appears and begins to grapple with Chase. Chase is unable to break free from Smoke, and the two leap into the back of the vehicle as Renee begins to speed toward the energy barrier. Renee is unaware that the men have resumed their battle on the truck, until she looks back and sees Smoke stab Chase with his cleave. His death imminent, Chase is able to turn the tables and use Smoke's own cleave to inflict serious damage to him. The two brothers die from their wounds, as Renee successfully breaks the barrier and portals to safety.

This episode synopsis was originally produced by The Official E:FC Website and remains the property of Tribune Entertainment.