When one of Grey Sloan's own becomes a patient in the hospital, Dr. Baily tries to figure out what happened; Meredith struggles with secrets that impact her relationships with Alex and Maggie; April and Catherine are at odds over the new baby.
Meredith thinks about her loyalties, while Alex deals with the fallout of his actions; Amelia and Owen host a dinner party with surprising guests; Jackson makes a suggestion to help April through her recovery.
A family argues at the hospital following a car crash at a funeral; Arizona is caught between Alex and Andrew; Ben has a new parenting role; Amelia helps Meredith and Maggie work through a problem.
Alex struggles to do the right thing, but can't get a break; Jackson and April adjust to life with the baby; Amelia is uncertain about her relationship with Owen.
Meredith and Bailey are at odds over their liver transplant patients; Owen is tasked with looking after baby Harriet; Amelia has trouble telling Owen some important news.
Grey Sloan sees the return of a familiar face; Catherine puts on the pressure, forcing Bailey to make a decision about Alex; Amelia faces a tough case in the emergency room.
The arrival of a new consultant puts the doctors on edge; Amelia and Owen bring their personal problems into the hospital; April explores some unfamiliar territory.
A critical surgery brings back pivotal memories for Meredith, Owen, Stephanie and Richard as they band together to save a life.
Believing jail time awaits him, Alex makes an important decision about his future; the hospital treats victims of a building collapse; Richard wants answers about Eliza's presence at Grey Sloan.
Bailey, Arizona and Jo treat a violent teenage inmate and her unborn baby at a maximum security women's prison.
Richard and the attendings make Eliza's first day at Grey Sloan difficult; Meredith searches for Alex.
Maggie's mother pays her a surprise visit; Bailey must make a tough decision when an attending refuses to work with Eliza; Stephanie gets pulled into Owen and Amelia's drama.
The residents are caught between warring attending physicians; April has a challenging first day in her new role at the hospital.
Alex discovers much has changed at the hospital since he left; Jo must make a hard decision on a case; Arizona tries to distance herself from Eliza.
Richard, Jackson, April and Catherine tackle a tough trauma case intensified by hospital politics; Amelia finally faces her feelings about Owen; Meredith gets caught between Nathan and Alex.
April must make Jackson focus on the task at hand when the two travel to Montana to perform a complicated surgery on a young patient.
Diane Pierce returns to Grey Sloan, but Maggie still doesn't know why she's really there; Owen and Amelia address their problems as they work a trauma case together; Bailey tries to repair her relationship with Richard.
When Maggie's mom's health deteriorates, the doctors are at odds over how to treat her; Richard comes to grips with Bailey's betrayal.
When Maggie takes on a big case, many of the doctors are worried she's not the right one for the job; Stephanie makes the mistake of treating one of Grey Sloan's own.
Meredith and Nathan have to confront their feelings when they get stuck sitting next to each other on a plane.
Bailey and April work to fix things between Richard and Catherine; Eliza continues to pursue Arizona; one of Alex's previous patients returns to Grey Sloan.
April and Andrew consult with a patient who has an inoperable heart tumor; Alex and Eliza disagree about the treatment of a young patient; Stephanie and Ben make major decisions.
The doctors of Grey Sloan encounter a difficult case involving a dangerous patient; Owen receives life-changing news that pushes Amelia to step up to support him; Alex attends a medical conference after making a shocking discovery.