1. We've Only Just Begun
Meredith rethinks her plans. The interns are on thin ice following a patient's death. Simone and Lucas are immediately tested in an emergency. Richard confides in Bailey. Teddy's fate is revealed.
Grey's Anatomy — Season 20
The lights are still on at Grey Sloan Memorial Hospital as the twentieth season returns. In response to Catherine's ultimatum, Meredith resigns from the Fox Foundation and instead publishes the research publicly, valuing its potential to save lives over hospital politics, and departs Grey Sloan while discussing a future together with Nick. In retaliation, Catherine fires Teddy for secretly funding Meredith's Alzheimer's research. Winston faces relationship doubts after Maggie cancels plans for him to visit Chicago multiple times. Arizona Robbins returns to Grey Sloan Memorial Hospital to work with Miranda Bailey and Jo Wilson.
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2. Keep the Family Close
Bailey tells the interns they must complete dozens of basic procedures before being allowed back in surgery; things are awkward between Simone and Lucas; Amelia comes up with a solution to a complicated surgery.
3. Walk on the Ocean
Meredith and Amelia work to secure funds for their research while Amelia finds herself at odds with a new attending. Levi runs into someone from his past, and Owen gives Winston advice. Lucas ditches Mika, forcing her to treat a patient alone.
4. Baby Can I Hold You
Dr. Arizona Robbins returns to Grey Sloan for a particularly complicated case. The interns are interrogated about their past mistakes, while Teddy is eager to return to work after her health scare.
5. Never Felt So Alone
It's all hands on deck at Grey Sloan when a group of medical students is injured by a floor collapsing at their white coat party. Jo and Link are forced to talk about the future, while Jules confronts Winston about his attitude.
6. The Marathon Continues
Mika and Teddy receive a patient from a nearby penitentiary. Catherine pushes back on Link and Monica's treatment plan for a VIP. Bailey tries to integrate wellness into the residency program.
7. She Used to Be Mine
An unexpectedly complex case brings back painful memories for Simone. Jules and Blue make a high-stakes bet on who can finish their procedure log first. Richard suspects Winston is avoiding him.
8. Blood, Sweat and Tears
Owen and Teddy have the day off but encounter an injured civilian. Monica enlists Amelia's help with an operation on a young patient. The interns complete their procedure logs, allowing them back into the OR.
9. I Carry Your Heart
Just as Amelia comes to a realization, Teddy encourages her and Meredith to speed up their Alzheimer's research over fear of Catherine finding out. Mika finds herself caught in the middle of Link and Jo; meanwhile, Lucas receives bad news.
10. Burn It Down
Wildfires threaten the Seattle region, leading to a flood of patients and emergency procedures. The doctors juggle overcapacity in the ER, complex surgeries and personal stress. Meanwhile, Meredith makes a rash decision that can't be undone.