Watson discovers that her stepfather has written a novel based on her and Sherlock's adventures. Also, the duo investigate the murder of a retired FBI agent.
Diane and Lucca represent an ovarian cancer survivor who wants custody of her previously donated embryos. Someone creates a fake social media account for Maia, and Mike Kresteva visits Reddick, Boseman and Kolstad.
Adrian and Barbara come to a realisation about one of their high-profile clients. Lucca acts as second chair to Diane in a case involving a doctor.
A spate of coordinated attacks on Red's lieutenants puts Dembe in imminent danger, prompting him to relive the events that led him to join the FBI two years earlier.
Red questions the whereabouts of a former associate; the task force hunts down a criminal dealing in illegal psychedelics.