While Meredith faces the repercussions of messing with the medical trial, April tries to step up as chief resident; Cristina and Owen disagree.
Finn stellt klar, wie es um Docs Gesundheit steht; Meredith wird mit Callie zum Dienst eingeteilt und George mit Derek; Burke und Izzie suchen weiterhin nach einem Spenderherz für Denny.
A dangerous situation leaves the doctors fighting to stay alive while trying to save their peers; Ben and Bailey make a decision; Teddy gets a tempting offer; Richard plans a dinner for the residents.
Following the storm, a mudslide injures first responders and citizens; Meredith faces a decision that will impact a loved one; Callie is rocked by Arizona's infidelity.
The doctors prepare for a superstorm headed for Seattle; as Owen becomes closer to Ethan, his desire to be a parent gets stronger; Meredith and her baby are put in danger.