Stranded on a "ghost ship," Mulder and Scully must unravel the mystery of an unearthly force that is causing them to age at an accelerated rate.
Mulder questions the sanity of an employee who believes his boss is a literal monster – until Mulder himself begins to perceive the presence of a hideous entity.
Sarah takes the day off to reconnect with Kira; Cosima infiltrates an exclusive Neolutionist fertility research center and makes a shocking discovery of their clandestine experiments.
When Team Arrow learns what Damien Darhk's devastating next move is, Felicity realizes she needs to ask her father, Noah Kuttler (Tom Amandes), for help. Noah and Oliver have a heart to heart talk that leaves Oliver rattled.
Astrid and James wrestle with differing opinions on how to move forward with an important decision affecting Viv.
