A young cancer patient struggles to tell her parents about her condition; Dr. Reese turns to Dr. Charles and Detective Lindsay for help with a troubled young man; a teen science geek and her friends impress Dr. Choi and Natalie.
Will confronts a moral decision when his former teacher faces a life-threatening disease; Rhodes disagrees with the father of a young patient about a risky procedure; an unusual case causes Sarah to recall Jason Wheeler's suicide.