The doctors of Grey Sloan Memorial Hospital are forced to put their emotions aside when a catastrophic event occurs.

As the doctors continue to tackle an unfathomable crisis, they are reminded of what is important and are brought closer together.

Marshall becomes obsessed with saving the environment after seeing a documentary on garbage. Ted runs into The Captain. Barney admits he has feelings for a woman.

Fontana and Green are called in to investigate when Green’s former replacement, Nick Falco, is suspected of murdering a young woman he had spent the night with.