A shooting at a nearby restaurant bombards the hospital with plenty of gunshot victims -- and one intended victim that didn't get shot.

Denny proposes to Izzie after receiving his new heart and Burke experiences hand tremors after awakening from his surgery. Meanwhile, the interns plan the prom for the Chief's niece while awaiting their fateful meeting with the Chief; George and Callie have a heart-to-heart about his feelings for her; and Meredith and Derek must make a decision about Doc. Mer also must decide between Derek and Finn.