When an author of a book debunking the career of a popular martial-arts movie star is killed, the evidence points to the star himself, despite the fact that he has been dead for years!
A motley assortment of commuters, including Monk and the gang, are stuck on the highway after a fatal car accident brings traffic to a dead halt. But Monk doesn't think it was any accident.
Shawn tangles with the Army when he claims that a Private's suicide was actually murder, and suspects Juliet's former military/current mercenary brother is involved. John Cena guest stars.
When Shawn and Gus join Gus' new girlfriend on a rafting trip, a member of the group goes overboard, but Shawn quickly realizes it was no accident. Stacey Keibler, Sarah Shahi, Steve Howe guest star.
When Juliet asks Gus to help her track down an old boyfriend, she inadvertently exposes a dark and closely guarded secret. Josh Braaten and Craig Sheffer guest star.
Shawn and Gus are recruited into a think tank to help prevent the murder of a business tycoon, but once the group has disbanded, they realize that one of the members plans to use the assassination ideas.
After Lassiter takes a page out of Shawn's book and claims a shark attack victim was actually murdered, the guys must then scramble to find the fish and prove him right. Jeri Ryan and Michael Hogan guest star.
Jennifer Shannon is approached by Tamara Andronicus to solve a puzzle box left behind by Tamara's recently deceased mother-in-law. When Jenn discovers Tamara dead, she begins to suspect that the puzzle box may hold the key.
Jenn acquires an antique camera from the estate of a deceased and seemingly wealthy photography enthusiast. When Jenn gets the photos in the camera printed, it leads her to believe that the man's death was anything but accidental.
Jennifer puts the winning bid on a vintage Welte-Mignon player piano at the estate auction of a philanthropist, but soon realizes that the late owner may have led a less than charitable life.
Birdie and Alden Case find a way to keep the mystery in their marriage alive, literally, when the amateur sleuths are pulled into a murder investigation. Stars Aimee Garcia, Paul Campbell.
Jennifer Shannon agrees to help fellow antiques dealer Miles Wexford by bidding on items at a police auction on his behalf. When he turns up dead, she investigates a counterfeiter with mob ties. Stars Lori Loughlin, Steve Bacic.
