Mockingbird is undercover, infiltrating Advanced Idea Mechanics?but as her deception crumbles, can she escape before the High Council of A.IM. discovers her true identity? As Maria Hill gets a mind-bending offer from a rogue A.I.M. operative that you'll probably recognize, Hawkeye, Black Widow and Fury plumb the organization's depths. But when A.I.M. strikes and takes out the team, Taskmaster and Mockingbird must go full stealth mode as the entire A.I.M. Island searches for them! As A.I.M.'s secrets are spilled, Forson's wild card is revealed, a traitor at the heart of the group comes to light?and Mockingbird faces a crossroads that threatens to tear her apart. Collecting SECRET AVENGERS (2013) #12-16.