[s3e24] 10-7 -

The episode begins with an explosion at a warehouse party that leads Horatio Caine and his team to investigate a man hired to build dirty bombs for terrorists. While processing the scene, Horatio discovers a bloody fingerprint belonging to his brother, , whom he previously believed was dead. As the investigation progresses:

emerges from deep undercover after his son is kidnapped, forcing the estranged brothers to work together to rescue the boy. [S3E24] 10-7

faces a life-threatening encounter in her ballistics lab when an unknown assailant holds a gun to her head, leaving her to question her future as a CSI. The episode begins with an explosion at a