Maya and her unborn baby are fighting for their lives on the operating table, and Addison, Amelia and Fife try everything humanly possible to save them. Meanwhile, Sam operates on an incoming crash victim and later makes a grim discovery; Cooper makes an ill-timed but valiant effort with Charlotte, and the staff’s world gets rocked [...]

Naomi puts Fife in a conflicted position when she begs him to help William’s advanced ALS with his still experimental treatment. Meanwhile Violet and Amelia treat a woman with a brain tumor who has to choose between life or quality of life, and Sheldon decides to officially throw his hat into the ring for Charlotte’s [...]

After Violet files for joint custody of Lucas, an embittered Pete voraciously fights back by hiring a tough attorney for the trial, forcing their fellow friends and co-workers to choose sides and have their personal lives dragged onto the stand and into the public eye.

After her open-ended escape to Costa Rica, Violet has finally returned home and to the practice. Everyone treads a little lightly around her, especially Pete and Addison who have mixed feelings about Violet’s desire to reconnect with Lucas. Meanwhile Amelia butts into Sam’s personal life, pointing out that he can mend hearts in the OR [...]

When a famed neurosurgeon and her team visit St. Ambrose, Addison is surprised to see Derek’s younger sister on the team; Charlotte and Cooper try to figure out how to work together.

A husband’s decision to pull the plug on his pregnant wife is overruled by a judge, forcing the hospital to keep her on life support until the fetuses she is carrying as a surrogate are able to survive. Meanwhile, Naomi feels betrayed after learning of Sam and Addison’s feelings for one another, and she turns [...]

When Addison’s patient and the life of the three unborn babies she is carrying as a surrogate hang in the balance, Sam’s new girlfriend, Vanessa, and Addison are sharply divided on the course of treatment. Meanwhile Cooper seeks Sheldon’s help with a young patient, but their personal quarrels over Charlotte get in the way, and [...]

Addison, Pete and Sam must work together on a complicated case involving a father-to-be who comes down with tuberculosis; Sheldon’s helps one of Violet’s patients get over her fear of flying.

As Violet continues to help Sam with Maya’s wedding, Naomi refuses to take part as she works with Addison and Pete to save the life of a 25-week-old premature baby. Meanwhile, Cooper suspects that Charlotte’s new boyfriend is abusing pills.

As tensions between Sam and Addison rise, she turns to Pete for comfort.

Addison and Cooper are counseling a couple who must pick a child to save with their newborn’s cord blood. Meanwhile Dink wants to marry Maya.

Maya shocks Sam and Naomi, while Pete and Fife disagree on patient care.

Addison and Mark head back to Ocean Wellness to help his pregnant daughter. Naomi and Dell can’t agree how to raise their children together and Violet and cooper can’t agree on patient care.

A terrible explosion at Dell’s house lands Betsey and Heather in the hospital, and everyone is pushed to the limit trying to save their lives. Tensions rise even higher between Addison and The Captain when her mother, Bizzy, shows up and a shocking family secret is revealed.

Addison performs a complex in utero surgery, proving not only her talents to her father but also finally giving them some common ground. Meanwhile Sam and Naomi deal with their own family crisis when they discover their daughter is growing up way too fast, and Violet does the unthinkable.

Addison is shaken by the unwelcome arrival of her father to Los Angeles, Cooper is arrested when he refuses to cooperate in a case involving a longtime patient, and Pete fights to keep a terminally ill patient alive long enough for him to meet his new daughter.

Addison and Sam go for a hike in Malibu, and must perform urgent field care when they stumble upon an expecting couple, trapped in their car after an accident. Meanwhile at Oceanside Wellness, Charlotte, Cooper and Violet treat a newlywed who, out of nervousness for his wedding night, has taken too much Viagra, and Pete [...]

The doctors venture into controversial territory when an unexpected new hire at Pacific Wellcare causes Naomi to struggle with the idea of genetically designing babies and Violet makes a sudden decision to try electric shock therapy on a patient. Meanwhile Addison somehow finds herself alone and with a cat.

Addison must deal with the return of Naomi’s former patients, Zoe and Amelia, whose embryos were accidentally switched, and a serious complication that may end up jeopardizing both fetuses. Meanwhile the time has come for Katie’s trial, as Violet struggles with whether or not she can face her attacker in court, and Charlotte is determined [...]

Addison, Sam and Cooper treat the sick child of a homeless teen mother they met while volunteering. Meanwhile Violet has trouble relating to her baby when her feelings about her attack resurface during counseling of a rape victim who is now pregnant, and Cooper’s financial woes catch up with him when he’s asked to help [...]

Miranda Bailey brings a kidney transplant patient to Los Angeles, and Addison isn’t the only Oceanside Wellness doctor pleased to see her. Meanwhile the consequences of Addison’s emotional affair with Noah catch up with her, and Sheldon and Pete finally discover who the father of Violet’s baby is.

Violet is physically recovering from her violent attack at home, but the emotional trauma she suffers from isn’t going away, despite the best efforts of Pete and her other friends to help. Meanwhile, Addison and Naomi try to mend their tension-filled relationship, as Sam and Cooper treat a father, who has allegedly attacked his family, [...]