Separated from their team, Coulson and Mack discover a shocking secret about Mace, leaving all of S.H.I.E.L.D. in a precarious position.
The SHIELD team must find a way to contain an explosive Inhuman; Coulson and Mack come face-to-face with Radcliffe’s inspiration for Aida.
Agents Sam and Billy are hunted down to get at the Darkhold book, and only Coulson and the team can save them before the clock ticks out.
Coulson finally reveals the mysterious deal he made with Ghost Rider, which will impact everyone on the S.H.I.E.L.D. team.
Mace fights for his life while Coulson and the team find themselves in a deadly cat-and-mouse game as they attempt his rescue.