A man observes a mysterious glass box, South Dakota Police discover a hideous crime and Hawk receives a cryptic message about Special Agent Dale Cooper.

Cooper and Janey-E are in for a violent surprise at the Lucky 7 office. Meanwhile, Gordon and Albert try enlisting Diane to figure out the mystery of the man they believe to be Cooper in jail.

More about Dougie Jones comes to light after an attempt on his life. Meanwhile, Gordon Cole discovers connections to Cooper concerning a Blue Rose case and Major Garland Briggs.

An old FBI case gets new recruits after many years while well-known residents of Twin Peaks face problems.