It's Jamie's fifth birthday, and a grand event for the gang. Lucas hoped Lindsey, who also attends, will go back to him, but she insists on leaving her key as she leaves for New York. Although he was the one one Jamie explicitly asked to be invited, Dan isn't even allowed to hand over his personal present. However he has another for Nathan, and a heavy reason to give it. Meanwhile Brooke learns the parenting joy can drown in rivers of tears and noise, and Millicent's entry in the boys flat proves hard to adjust to.