Thackery and Capt. Robertson's connection and how the doctor arrived at the Knick, are revealed; the problems between Edwards and Gallinger come to a head after a medical-board hearing about Gallinger's vasectomies. Later, Cleary and Harriet engage in a joint business venture; Lucy shares memories with her father; Barrow realizes the rising costs of living well; and Cornelia and Henry face a family crisis.

Cast: Clive Owen, André Holland, Jeremy Bobb, Juliet Rylance, Eve Hewson, Michael Angarano, Chris Sullivan, Cara Seymour, Eric Johnson, Grainger Hines, Charles Aitken, Tom Lipinski, Michael Nathanson, Tom Brangle, David Pittu