Brian Lee Huynh

When a nurse Watson used to work with asks for her help finding their missing acquaintance, the woman's trail leads Watson and Holmes to another person who has disappeared. Also, Sherlock struggles with his sobriety when he finds the recovery process monotonous.

When Elizabeth discovers that a terrorist bombing at an Illinois coffee shop was funded by someone with close ties to the Saudi government, she makes a bold move after the Saudi ambassador refuses to bring the man to justice. Also, Matt refuses to issue a statement when news breaks that he and the bomber are linked to the same mosque, and Henry reaches out to Dmitri when he hears he's having trouble adjusting to his new life in Phoenix. Chris Petrovski reprises his guest role as Dmitri Petrov. (TV-14 L, V)