Surgical resident Dr. Grace Devlin (Jordana Spiro) juggles her promising medical career with a secret deal to offer her medical services to a mob boss in order to save her ne'er-do-well younger brother's life.

After treating a family that was involved in a fatal car accident, Grace (Jordana Spiro) is stunned when Constantine (William Forsythe) orders her to treat the hit-and-run driver's injuries, too.

An exiled mobster's return to Chicago draws Grace (Jordana Spiro) into the middle of a looming showdown between Constantine (William Forsythe) and undercover cop Franco (James Carpinello).

As she struggles to stay out of a brewing gang war, Grace is tapped to treat Brett's estranged brother following a bicycle accident. Nate turns to his sister after he accidentally jeopardizes a mobster's valuable racehorse.