Code M for Murdoch: Terrence Meyers awakes Murdoch and Ogden to deliver an intercepted telegraph that seems to be from James Pendrick. At the station house, Pendrick's assistant confirms she hasn't seen him for weeks. The information shifts Murdoch into invention overdrive, while Brackenreid, Higgins, and Watts search the wharf. Then Ogden connects a badly beaten man pulled from the river to the missing entrepreneur.