Mulder and Scully investigate the strange deaths of members of a high-school graduating class in the Pacific Northwest.
Peter, unwittingly in a race against time with an ominous force, investigates Olivia's visit to a parallel universe.
Mulder and Scully uncover a chilling link between a UFO cover-up and secret government experiments.
To locate a potential cure for Scully’s illness, Mulder accesses a secret research facility, leading to a stunning revelation about the origins of her cancer.
With his partner lying comatose in a hospital bed, Mulder receives key information from the Cigarette-Smoking Man that could mean life or death for Scully.