The pulse-pounding eighth season of CBS’s procedural hit FBI has finally wrapped up, and the finale—titled "Defector"—completely fractured the foundation of 26 Fed. Balancing a terrifying bioweapon threat with intense personal consequences, the final stretch delivered a jaw-dropping twist that radically changes the future of the team. The FBI Season 8 Ending Explained The high-stakes race to stop a bioweapon attack ends with a horrific moral compromise that tests the team's c