First Look at FX's "Powers"

Plot:

Powers is set in a world where superpowers are relatively common but not mundane. It follows the lives of two detectives, Christian Walker and Deena Pilgrim, police officers in a Homicide department devoted to cases that involve "powers" (people with superpowers). Walker himself used to be a costumed superhero named Diamond, but became a police officer after he lost his abilities. Though stripped of his powers, he still retains his contacts within the superhero community, even becoming engaged to an ex-colleague, who is later killed. In later issues, Walker is offered the chance to become the world's latest secret Guardian as part of The Millennium Guard, a secret group of intergalactic guardians, accepting the responsibility and the powers that come with it.

Deena Pilgrim, his partner, is also hiding at least one troubling secret. She contracted superpowers during a fight with an underworld thug named the Bug, an event which she kept under wraps. As a result of this, she unintentionally kills her abusive boyfriend in self-defense, and hides the evidence, although coming under investigation by Internal Affairs. However after a series of events involving Retro Girl going undercover, Triphammer cures Deena and she is no longer under the scrutiny of I.A