An explosion at Dell's house lands Betsey and Heather in the hospital. everyone is pushed to the limit in trying to save their lives.

The tensions between Addison and The Captain rise even more when her mother, Bizzy, shows up and a shocking family secret is revealed.

Desperate to help his pregnant daughter, Mark (Eric Dane) follows Addison back to Oceanside Wellness, Dell and Naomi struggle to raise their children under the same roof, and Violet and Cooper heatedly disagree on how to treat a patient on.

Charlotte suffers in silence after the assault; Addison tries to keep that night's events a secret.