A witness forced from the Amish community must learn to adapt.

Detectives Lupo and Bernard investigate when the writer of a best-selling memoir is found dead in a community of male prostitutes.

When Frank Prady (David Hyde Pierce) decides to go after Governor Florrick as a campaign tactic, Alicia is faced with the decision of whether or not to attack Peter's record as well. Also, when Florrick/Agos/Lockhart take on the case of a man paralyzed by a malfunctioning gun created on a 3D printer, they call on Kurt McVeigh (Gary Cole) to testify as an expert witness, which leads to a rift between Diane and her husband. Michael J. Fox and Denis O'Hare also guest star.

Jackie and Danny look into the suspicious death of an investor; when the Sanfinos order a hit on Jimmy Riordan, Frank puts Jamie under house arrest.

While investigating what appears to be a random shooting, Elsbeth meets Rod, an entitled playboy working through his bucket list of thrills, which may include murder.

Nora takes care of some unfinished business before heading to New York for a conference.

Kensi and Deeks search for three Marines who go missing after an ambush; Nate returns from his mysterious assignment.

Kat feels the distance between her and Adena.

Eli hopes to get back in Nucky's good graces; Gillian tries to improve her future.

The CSI team investigates three dead bodies just blocks away from a campaign dinner, they think they know who the killer is before making a shocking discovery.

A distraught D.B. Russell leads the CSI team on a dangerous mission -- to locate his abducted granddaughter.

Goren and Eames investigate the death of a Broadway actor who is killed while performing a stunt.

Chris and Tony nominated actor Billy Magnussen (Lilo and Stitch, The Franchise) discuss striving for authenticity, disappearing into characters, and the thrill of cold FaceTiming your friends; Billy is currently starring in The Audacity on AMC.