Zion must reveal to his best friend Luke that he is a spy, with the code name Onyx when it becomes clear that his world of espionage is exposed and looking to take him out.
Working to devise a strategy with his handler, Onyx learns an unbelievably high bounty has landed on his head, inviting more mercenaries to come after him.
As Onyx shares new truths with Luke, they meet with their liaison to escape their situation, only to be intercepted and come face-to-face with Viper and Steel.
After the abduction of Onyx and Luke, Quinn and his team work to figure out what new threat has emerged. Unexpected revelations change the dynamics in Onyx's world forever.