CBS’s FBI wraps up season eight with an episode that finds the team trying to stop the release of a bioweapon. Season eight, episode 22, “Defector,” will air on Monday, May 18, 2026 at 8pm ET/PT. “Defector” Plot: The theft of a bioweapon from an unwitting defector forces the team to work with an old foe to secure the lethal pathogen and prevent an outbreak in N.Y.C. Also, OA’s future on the team is put into question. Aaron Ginsburg, Ryan Maldona…
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