Joseph Fuhr

A series of murders in San Francisco bearing the tell-tale signs of the infamous Zodiac Killer have the BAU wondering if the notorious serial killer has returned. Also, Reid ponders if he should be doing more with his genius abilities.

When the Jeffersonian team discovers the body of a renowned but disliked chess master amidst pig slop, Sweets surprises the team with his chess skills and goes undercover in the world of professional chess to find the killer. Cam is being recognized in the “Outstanding Woman of Science” issue of a noted science publication but is hesitant to participate since she does not want to offend Brennan who knows she should be the one to be honored. Meanwhile, much to Brennan’s annoyance, Dr. Douglas Filmore, the always sunny Canadian forensic podiatrist fills in as a lab intern.

On leave from NCIS while still grieving the loss of his wife and his kids' mother, Director Vance discovers unexpected personal information that causes him to question everything.

Mary returns to WITSEC from maternity leave to find a new set of office dynamics. She must protect a witness who could take down one of the most powerful secret societies in the country.