S2, E5: When an innocent teenager is kidnapped, Eric and the team discover that instead of a typical cash ransom, the kidnappers want something much more difficult to acquire: a high powered grenade launcher. We uncover that the teen’s father is an arms dealer and Eric negotiates to make the trade. Meanwhile, Zara is shocked to see that one of the captors is her former colleague and abuser at the NYPD. In a race against time, Eric and the team must save the hostage and prevent an imminent plot to destroy dozens of lives.