While being detained near the famed "Dreamland" Area 51, a strange craft flies overhead and Mulder swaps bodies with an Area 51 'Man-in-Black'. While the other agent has fun in Mulder's body, Mulder himself finds it difficult to fit into someone else's life, especially a shadowy one. Mulder contacts Scully about the body-swap and tries to get her the Flight Data Recorder from the UFO test flight but his alter ego uses Mulder's FBI persona to have him arrested.
