The doctors vie for a new position, Meredith struggles to stay focused and Maggie finds herself the keeper of a secret. Elsewhere, Amelia and Owen try to figure out their relationship while Jo and Alex's honeymoon doesn't go as planned.
The new doctors continue to shake things up in the hospital; Meredith forms a connection with a patient; Jackson finds it difficult to find the meaning behind his recent experiences; Jo forges an unexpected alliance.
Meredith treats a patient who happens to specialize in matchmaking; a seemingly drunk patient pushes Richard's buttons and gives him a mystery to solve; Maggie tries to reach Teddy after the burden of her secret becomes overwhelming.
Meredith turns heads when she shows up to work ready for a blind date later that day; Alex makes a questionable decision to save a patient; the burden of knowing Teddy's secret keeps Maggie up at night.
Meredith reaches out to Teddy and helps her talk through some of her personal struggles; Owen and Amelia hide out near Betty's school after she becomes a flight risk; Jo wants to get to work, but Bailey's attention is elsewhere.
Meredith has a patient whose family is celebrating Day of the Dead, making the doctors remember loved ones they have lost; Richard shares unexpected news with Meredith about her father; Teddy tries to tell Owen that she is pregnant.
Catherine is in Los Angeles getting the new foundation ready. Meanwhile, Meredith and Koracick visit for a highly confidential consult and a pregnant nurse collapses at the hospital while talking to Richard.
Seattle is hit by a huge windstorm, and Grey Sloan becomes inundated with patients. Alex and Jo are stuck at home and decide to make the best of it by having a honeymoon. Meredith confronts Richard about getting his life back on track.
The windstorm continues to blow through Seattle and when the power is knocked out at Grey Sloan, the doctors must scramble to save lives. Owen, Amelia and Teddy confront their complicated situation.
Meredith questions Link's relaxed approach to a patient's treatment; Maggie worries that Richard, Jackson and Catherine haven't come to terms with Catherine's diagnosis; DeLuca steps up in the operating room when Owen faces a setback.
As Meredith gains some clarity on her dating situation, the strain on Bailey and Ben's marriage comes to a head. Meanwhile, Betty surprises Owen and Amelia.
A sea of patients flood the hospital after gunfire goes off at a parade and a blast from the past throws Maggie off her game on the same day that Meredith tries to talk to her about DeLuca. Owen and Amelia get some life-altering news.
Meredith breaks a hospital record; the doctors are sent scrambling in the wake of a massive overdose within the community; Jackson wants to take Maggie camping; Levi and Nico's relationship continues to develop.
When Jackson throws a party to celebrate Catherine's surgery and those who worked to save her, nothing goes as planned; Helen pays Alex and Jo a surprise visit.
Meredith finds herself having to side with either Alex or DeLuca during a difficult situation; Maggie reveals details about her personal life that cause a public stir; Levi struggles with whether or not to tell his family about Nico.
Ties are strained as Andrew and Carina confront an unforgiving family history; Teddy and Owen work together on a married couple that is expecting; Amelia attends a conference for alternative pain relief.
Maggie introduces mood rooms as an alternative approach to medicine; Alex and DeLuca butt heads over an 11-year-old patient who tries to sabotage her own surgery; Teddy has a pregnancy scare that brings Owen and Koracick to odds.
Owen and Teddy have to deal with the surprise arrival of Megan Hunt; upon her return, Catherine preps for a surgery on a war veteran who's not emotionally prepared for the procedure; Meredith worries about DeLuca operating with Richard.
Amelia and Link travel to New York to operate on a patient who has a severe spinal deformity, but they're in for more than they bargained for when Nancy Shepherd invites them to dinner at her home.
As Meredith debates how to handle an unexpected situation in her personal life, Richard has an untimely reunion with an old friend. Meanwhile, Jo has a hard time at work, and Owen tries therapy.
Maggie treats one of Station 19's own, and Jo learns a hard lesson. Meanwhile, when working with a family seeking asylum, Meredith makes a call that could jeopardize her career.
Alex tries desperately to save his patient while he waits for a severely agoraphobic blood donor to arrive from London; Jo reveals to Meredith why she's been so down.
As fog begins to cover Seattle, the doctors must navigate through personal complications; Meredith and Alex attempt to save Gus; Levi talks some sense into a struggling Nico.