Ben receives an unwelcome surprise, Norma's mother arrives in Twin Peaks with a new husband, and Bob covers his tracks.

Blaming Cooper for the death of his brother, Jean Renault plots his revenge as the eccentric FBI agent prepares to leave Twin Peaks.

With Major Briggs missing, Cooper and Truman look for answers.

The investigation into the disappearance of Major Briggs continues, while Bobby tails Hank Jennings at the request of a mentally unstable Ben Horne.

Major Briggs has no memory of the place he was taken, but now has an odd tattoo on his neck. Andy and Dick break into Little Nicky's files. Mike and Nadine begin an affair. Evelyn asks James to kill her husband.