Kate returns three episodes later and Walden spends Valentine's Day with her.
Rose acts like she is okay with it at first, but after leaving, she sends two ferrets to attack Walden.
Charlie invariably orders pizza from Gordon's pizzeria for him to deliver, irrespective of the distance; including when subletting his own live-in girlfriend Chelsea's old apartment in the San Fernando Valley, and when camped out with Alan et al.
He proceeds to tell his father that the most important thing Charlie taught him was that when he is his uncle's age he wants to be married and have a family, because Charlie seemed very lonely and unhappy.
However, as he is about to enter the beach house a grand piano being transported to the house by helicopter falls on him, killing him thus ending the show.
Nick is unseen, though Alan spies on him and Lyndsey and hears them having loud sex.