Word of Billy's and Diane's engagement receives a mixed reception at the hospital; Jack returns from vacation with a windfall and a feverish belief he's on a winning streak; Kate alienates some colleagues when a reporter follows her around the hospital; Jack takes on the delicate job of operating on an infant with an exposed spinal cord.

Gang warfare breaks out in the E.R.; Kate refuses to perform a heart transplant; Billy and Diane get back together.