Christina teams up with a detective to locate Isabel, who goes on the lam after kidnapping her son from foster care. Elsewhere, Tom returns to surgery; and a hidden truth about Candy bubbles to the surface. 

Season 2 closes with a construction accident that causes an explosion, sparking crisis and chaos at the hospital. Elsewhere, Dr. Marshall pushes Ray's buttons regarding his feelings toward Candy; Bobbie and Steve offer truths about their pasts.