Jake Borelli

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 potentially life-altering news.

Meredith questions Link's laid-back approach over a patient's treatment. Maggie worries that Richard, Jackson and Catherine haven't come to terms with Catherine's diagnosis.

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.

Meredith finds herself having to side with either Alex or DeLuca during a difficult situation, but she doesn't want to betray either of them.

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.

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.