Dr. John Ellison is a committed and compassionate ER doctor at Samaritan hospital. He's guided by an unswerving belief in his responsibility to assist his fellow man, no matter the cost. That philosophy has often left his wife and son feeling abandoned and now, in the wake of Antoine Tyler’s shooting, is leading John to cross lines he never thought he would cross. Even as he compromises his once-firm principles, John continues to believe that all the risks he’s taking are for a greater good: to protect his family and save lives. But with the thread that’s been holding him together since he lost his 8-year-old daughter to cancer in danger of snapping, and his smoldering pain leading him down a potentially deadly path, it is becoming increasingly clear that Dr. Ellison’s patients aren’t the only ones in need of healing.