THE TEAM FACES THEIR TOUGHEST ROADBLOCK YET WHEN A STRING OF CRIMES LEADS THEM TO DISCOVER AN ONLINE CONSPIRACY THEORY COMMUNITY, ON "FBI," TUESDAY, DEC. 10

James Tupper Guest Stars as Phil, the Father of a Victim's Former Partner

"Monumental" - After a park ranger is shot dead by a masked assailant on Governors Island, the team discovers a string of connected crimes that leads them to their toughest roadblock yet: an online conspiracy theory community, on FBI, Tuesday, Dec. 10 (8:00-9:00 PM, ET/PT) on the CBS Television Network, and streaming on Paramount+ (live and on-demand for Paramount+ with SHOWTIME subscribers, or on-demand for Paramount+ Essential subscribers the day after the episode airs)*.

WRITTEN BY: Matthew S. Partney

DIRECTED BY: Eriq La Salle