Pete touches an artifact that puts him in a world where he never existed, and he must reassemble the team and defeat a nemesis from the past to restore his existence.
Pete and Myka investigate the theft of a top-secret file from the warehouse, which brings them to a high school in Wyoming, where H.G. Wells is working as a teacher named Emily Lake.
Stukowski is interrogated by Warehouse agents after they learn she was using artifacts to kill regents, who are the secret protectors of the Warehouse. Pete and Claudia seek out Stukowski’s partner-in-crime amid a crisis involving three regents; Steve is provoked into crossing the line