Philip and Elizabeth’s long-planned mission turns ugly, impacting each of them in different ways. Stan digs in deeper at work as his personal life continues to unravel.

Holmes and Watson’s deadly conflict with Sherlock’s former friend Michael intensifies when their newest victim looks to be the serial killer’s latest prey.

Flashbacks to Finch’s adolescence provide insight into his creation of The Machine. Also, the team receives the number of an already dying man, and Reese leaves the POI team behind…