After spending graduation night together, Emma and Dexter go their separate ways — but their lives remain intertwined. Based on David Nicholls' novel.

Eight years ago, Citadel, an independent global spy agency, was destroyed by a new syndicate, Manticore. With their memories wiped, elite agents Mason Kane and Nadia Sinh barely escaped with their lives. Eight years later, Mason’s former colleague, Bernard Orlick, asks for his help to prevent Manticore from establishing a new world order.