Seasons & episodes
S3 · E1Parliament of Owls 2015-07-12 · 60 min
Masters and Johnson face the press for the first time.
S3 · E2Three's a Crowd 2015-07-19 · 60 min
Masters takes on a high profile patient. Virginia and Libby come to terms.
S3 · E3The Excitement of Release 2015-07-26 · 60 min
Masters and Johnson look to capitalize on their burgeoning fame.
S3 · E4Undue Influence 2015-08-02 · 60 min
Masters seeks unexpected advice. Virginia is distracted by news of Henry.
S3 · E5Matters of Gravity 2015-08-09 · 60 min
Johnson's parents arrive unannounced. Masters takes on a promising patient.
S3 · E6Two Scents 2015-08-16 · 60 min
Masters and Johnson take on a famous couple hoping to renew their sex life.
S3 · E7Monkey Business 2015-08-23 · 60 min
Masters and Johnson are interviewed as they take on an exotic new patient.
S3 · E8Surrogates 2015-08-30 · 60 min
Johnson jets away with Dan Logan. Masters begins his surrogacy program.
S3 · E9High Anxiety 2015-09-06 · 60 min
Masters continues his surrogacy program, now under Johnson's critical eye.
S3 · E10Through a Glass, Darkly 2015-09-13 · 60 min
Johnson objects to Masters' program following missteps in the protocol.
S3 · E11Party of Four 2015-09-20 · 60 min
Agendas collide as Masters, Johnson, Logan and his wife meet for a dinner.
S3 · E12Full Ten Count 2015-09-27 · 60 min
Masters and Johnson find their life's work in jeopardy. Season finale.
S4 · E1Freefall 2016-09-11 · 60 min
In the wake of their fallout, Masters and Johnson search for purpose in a world without one another and look to work as their personal lives crash down around them. Libby finds herself alone for the first time since her marriage and discovers some unexpected allies. Season premiere.
S4 · E2Inventory 2016-09-18 · 60 min
Masters and Johnson turn to new partners in an effort to put the past behind them and focus on their expanding clinic. Given their fractured triangle, Libby reevaluates her relationship with Bill and Virginia.
S4 · E3The Pleasure Protocol 2016-09-25 · 60 min
Masters and Johnson adjust to new partners, but their respective cases have them second-guessing the instinct to remain separated. A romantic prospect pushes Libby to embrace life as a newly single woman of the sexual revolution.
S4 · E4Coats or Keys 2016-10-02 · 60 min
Johnson, Masters, Libby and Keller wind up together at a party thrown by Art and Nancy. Pairings and perspectives shift as the night wears on, until the light of day exposes the consequences of the evening.
S4 · E5Outliers 2016-10-09 · 60 min
Johnson and Masters' troubles come to a head as the trial begins with Keller leading the charge. Virginia does her best to revive their career as Bill faces the reality of what the charges could mean for him, Johnson and the practice.
S4 · E6Family Only 2016-10-16 · 60 min
Johnson looks to get her relationship with Masters back on track while Masters does his best to find satisfaction elsewhere. Betty and Helen ready themselves for a new addition; Art and Nancy discuss the consequences of their party.
S4 · E7In To Me You See 2016-10-23 · 60 min
Masters looks to groom Art as his protege in a new area of research as Johnson does her best to keep Nancy at arm's length. Betty seeks an unlikely source for assistance in her fight for equal rights to Helen's baby.
S4 · E8Topeka 2016-10-30 · 60 min
Masters and Johnson go on the road and pose as a couple to investigate practices at a competing clinic. While Bill and Virginia are away, Art, Nancy and Langham take advantage of their absence to further their own agendas.
S4 · E9Night and Day 2016-11-06 · 60 min
Masters and Johnson return from Topeka, each grappling with the trip's ramifications. Art and Nancy look to tie up loose ends in order to have a fresh start, and Libby embarks on a road trip with Bram that changes her perspective.
S4 · E10The Eyes of God 2016-11-13 · 60 min
Masters and Johnson work to save the practice from disintegrating in the face of insurrection within the clinic. As everyone in their lives either moves on or falls away, Bill and Virginia find solace in one another. Season finale.