Two patients need the same heart; a patient has never-before-seen orthopaedic hardware; Dr. Maggie Lin feels the pressure of the upcoming boards.

Alex and Charlie try to save the life of a man on the run; a spirit won't leave Alex alone; Maggie and Zach try to help a couple; Joel and Shahir help a bride walk down the aisle.

Dr. Alex Reid puts her reputation on the line when she questions a senior surgeon’s methods.

During an ice storm on Christmas Eve, Alex and Dawn fight to keep a woman alive long enough for her family to say goodbye.

Alex and Cassie try to free a young woman from her abusive partner; a patient's pacemaker malfunctions.