Brian Sutherland

A failed jewelry store robbery results in a murder that finds Nick (David Giuntoli) and Hank (Russell Hornsby) immersed in a hunt for rare coins. Nick soon learns that these coins have an unsettling effect on whoever possesses them, as Hank and Captain Renard (Sasha Roiz) begin to exhibit unusual behavior. Meanwhile, a mysterious old friend of Aunt Marie’s (guest star Titus Welliver, "Lost") comes to Nick with information about his family and what led to his parents' death. Bitsie Tulloch, Silas Weir Mitchell and Reggie Lee also star.

Pressure mounts for Elizabeth as she faces intense protests over rising fuel costs. Mike B is questioned by the Senate Intelligence Committee.

Elizabeth must decide whether to use autonomous unmanned weapons or send U.S. soldiers to bring the mastermind of the UN gas attack to justice; Blake is questioned by Senator Hanson about potential campaign finance violations.

Henry tries to fight for a legislation to provide better mental health care for veterans, but receives pushback from a surprising source.