Blowback is the 14th episode of Season 3 of Alias, and the 58th episode overall. While trying to retrieve a bomb, Sydney and Vaughn are ambushed by unidentified assailants. Meanwhile, Lauren and Sark continue to solidify their new partnership as the new leaders of the Covenant. Sloane divulges a dark secret to CIA therapist Dr. Judy Barnett about his past involving Sydney and Irina Derevko. Also, Marshall shows the strains of new fatherhood.