The Grey Sloan Memorial Hospital doctors are faced with the devastation left by the storm. A giant mudslide in Seattle injures a group of first responders and citizens, causing the already shorthanded ER to spring...

Meredith and Derek adjust to life at home with a newborn but find it difficulty being away from the hospital; Arizona tries to take steps to fix her broken marriage; Alex and Jo navigate through their new relationship; and Owen clashes with Jackson over financial issues at the hospital. Meanwhile, April anxiously awaits her boards results.