Powers Vol 04 TPB - Supergroup (2013)

Collects Powers (2000) #15-20.
When one of the key members of a popular supergroup is found violently murdered, the events that follow unveil the federal government's multi-layered control of the super-hero elite and how far they will go to cover up. Walker and Pilgrim are forced to make choices that will forever change their lives and careers... and how the world at large will see their heroes.