FBI: International (2021)

S4E10 Keep Calm and Deliver the Biotoxin

After a Russian biochemist is murdered while attempting to defect with his crucial biotoxin research, the Fly Team mobilizes to safeguard his daughter. The father’s final request was for her to deliver his work to a reliable American microbiologist. Meanwhile, Mitchell remains behind to support Vo as she heals, while Booth faces off with Smitty upon discovering that her situation could threaten his chances for a promotion.