Scully begins to suspect that her partner's strange behaviour is more than it appears to be, while Mulder fights to return his life to normal before it's too late.

Still trapped inside Man-In-Black Morris' body, Mulder manages to evade the brig when his fellow MIB cohorts discover that the flight data recorder Mulder tried to give Scully was a fake. They come to the conclusion that Mulder was trying to run a scam on the FBI. Mulder plays along and the MIBs are relieved, but still want the original flight data recorder back. Mulder waffles, but tells them he has it and that he'll return it.

Meanwhile, Scully is put on suspension and Morris (in Mulder's body) tries to ease her pain by inviting her to his house for a home-cooked meal. Suspicious at first, she agrees. But when she gets there, she finds an immaculate apartment and an actual bedroom she never knew Mulder had. Things are just a bit too weird. She confronts Morris about the switch and he comes clean, further explaining that he has no idea how to switch back.

A reluctant Morris accompanies Scully as she reveals to Mulder that there may not be a way to reverse this process. But somehow, one of the MIBs discover that the time warp is snapping back, reversing time in the process. He positions Mulder and Morris in the right time at the right place and their personalities are returned to the rightful bodies. Their memories of the past few days are rewound as well and no one remembers a thing. This perplexes Mulder when returns home to find a spotless apartment.