Arizona and Owen make an unexpected team, but they're a successful one when they investigate a doctor who is lying to patients and treating them for cancer they don't have.

Richard's sponsor is dying, and he and Amelia have an AA meeting with her after Richard comes to grips with her diagnosis.

Arizona has a health scare, and she enlists the help of April and Owen to figure it all out on Grey's Anatomy Season 14 Episode 18.

Amelia and Tom will join forces once again to perform a groundbreaking surgery using ultrasound waves in hopes of removing a tumor from a young patient. Chances are, it will be for Kimmie. DeLuca is scheduled to work with them, but Alex will likely make his presence known.

A transplant doctor who becomes Meredith's patient may become something more for Meredith. The two flirt and form a connection.

Meredith's patient and fellow doctor stokes something Meredith hasn't felt in a long time. Not since Derek.

Owen travels to Germany to reunite with Teddy and confess his feelings, but will everything turn out okay for these love birds?

April makes a breakthrough after tending to an important patient. She may finally overcome her issues.

Meredith and Alex have drinks and catch up. Surely she's proud of him for his engagement to Jo, but will a talk with Alex be enough to convince Meredith to pursue something with the new transplant doctor who has eyes for her?

Candis Cayne guest stars in this episode exploring a unique surgery about vangioplasty that Jackson will be performing with Catherine and Richard.

Jo proposes to Alex and wears the ring that he gave her a while back. They celebrate because Jo feels free.

Ellen Pompeo will be directing yet again on Grey's Anatomy Season 14 Episode 15.