Undercover operative Tom Keen joins forces with Susan "Scottie" Hargrave (Famke Janssen), the brilliant and cunning chief of Grey Matters, a covert mercenary organization that solves problems governments don't dare touch. While on the hunt for Liz's attacker, Tom secretly discovered that Scottie is actually his biological mother. Now, as they team up to employ their unique skills and resources in a dangerous world of deadly criminals, Tom begins his own covert mission to find out more about his shadowy past.