Nicholas E. Calhoun

Frank looks for evidence against a suspected cop killer; Danny and Baez investigate the murders of stars of adult films.

Shelby reunites with someone from her past, which puts lives in danger.

When Fish Mooney tries to locate Hugo Strange, Gordon reluctantly gets help from journalist Valerie Vale to find Fish; Penguin gets a surge in popularity; Bruce's probe into the Court of Owls is compromised.

A rogue FBI agent takes Dr. Ellen Sanders hostage after she is chosen to operate on the president, threatening to kill her and her family unless she assassinates him during the surgery.