Amy Ryder

When an armored car driver is shot to death outside a grocery store, Monk is called in to investigate. Witnesses saw the shooter, who used the driver’s own gun for the shooting. Monk looks for clues, but before he can get too deep into the case, he gets a phone call from his brother, Ambrose. Apparently, their long-lost father called and is coming to Ambrose’s house that night for a visit. Monk is skeptical, but he decides to go see Ambrose anyway.

At a reunion party at the Beverly Hills Beach Club, Clare is stunned after she learns of Steve's past relationship with Kelly, who learns there's more to the story than she knew.

Sean suffers uncontrollable spasms in his hands. After he nicks a patient's major neck artery during a routine cyst lancing, Sean stops performing surgeries.

Detectives suspect a victim of abuse is responsible for decapitating a priest.

The team investigates the disappearance of Anwar Samir (Dariush Kashani), a Saudi Arabian medical intern who became upset when his boss refused to write a letter of recommendation for him, and his girlfriend declined his marriage proposal. Anwar is a hardworking and well-respected doctor whose every move becomes subject to interpretation after he disappears. His desire to work at the Centers for Disease Control to study infectious diseases, his girlfriend's lack of knowledge about his career ambitions and even the books in his apartment suggest that he might have a hidden connection to terrorism. As Jack coordinates the investigation with the Joint Terrorist Task Force (JTTF), he discovers that samples of a virus are missing from a biotechnology company where Anwar once worked. Meanwhile, the team thinks that Martin--who is convinced that Anwar is a terrorist--may be more concerned with impressing the JTTF supervisor than with the truth.