Agent Cooper demonstrates an unusual deductive technique for the Twin Peaks Sheriff's Department.

Dr. Jacoby gets a phone call from Laura Palmer.

The investigation of Laura Palmer's murder reaches a terrifying conclusion.

In the aftermath of the incident at the Great Northern Hotel, the investigation into Laura Palmer's death continues, and information is provided from an unexpected source.

Cooper receives some unsettling news, while Audrey continues to work undercover as a hostess at One Eyed Jacks in Canada.

Donna meets with Harold Smith, a recluse who may be the key to solving Laura's murder.