Scully and Mulder discover a mysterious serial killer when they find that their current investigation is similar to an unsolved case from 1903.
A team member turns their hand to a new role, and Walter uncovers a key piece needed to defeat the Observers.
Mulder and Scully race to prevent an old adversary and recent prison escapee from taking revenge on Mulder.
A journalist finds proof that the government is involved with genetic cloning.
MacGyver leads a U.S./Soviet expedition into the Arctic to recover Russian gold from a downed World War II plane.
