Bobbie rents Roy a tux, then cajoles her reluctant boyfriend into escorting her to the Nurses' Ball. Amy grits her teeth as she reports for her annual harrowing duty as Lucy's dresser. Juan comes down with a bad case of stage fright just hours before the Nurses' Ball. Nikolas assures Elizabeth he wants to represent his family at the gala despite his grief at the prospect of never seeing Stefan again. Meanwhile, Sonny explains to a surprised Mike why he consented to take Carly to the ball. Bobbie's slip of the lip sets Roy wondering about last year's big event. Emily works to reassure Juan, who fears he'll flop in front of all his friends. Laura steadfastly rejects Lucky's theory that his father took it on the lam because he murdered Stefan. Nikolas tells Elizabeth he hopes he won't lose his brother if it turns out that Luke indeed is guilty. Mike apologizes to Carly for inadvertently adding to her pain. Robin returns to Port Charles just in time for the start of the Nurses' Ball. Carly