- Writers: Jack Amiel, Michael Begler
- Stars: André Holland , Cara Seymour , Charles Aitken , Chris Sullivan , Clive Owen , Eric Johnson , Eve Hewson , Frank Wood , Grainger Hines , Happy Anderson , Jennifer Ferrin , Jeremy Bobb , Juliet Rylance , Leon Addison Brown , Lucas Papaelias , Maya Kazan , Michael Angarano , Perry Yung , Richard James Porter , Suzanne Savoy , Tom Lipinski , Ying Ying Li , Ylfa Edelstein , Zuzanna Szadkowski
Dr. Thackery sets his sights on a return to The Knick - a request that doesn't sit well with the board. After a shocking discovery, Cornelia enlists Cleary to do a dirty job, for a price. Bertie makes a change; Robertson pushes a new subway initiative; Barrow drives up construction costs; Lucy is surprised by an unexpected visitor from home.