A serial bomber appears to be targeting Wall Street’s elite. Maggie and OA search for a suspect who seems dead-set on revenge, while Dana deals with Spencer Briggs, a cocky…

When Red directs the Task Force to find a Blacklister who uses his position of power to sell sensitive information, Ressler finds himself at risk of exposure. Meanwhile, Liz plans…

Blackmail is the twelfth episode of the twentieth season of the television series Law & Order. It aired on NBC January 15, 2010.