On Valentine's Day, Nanny gives the babies special cookies, but Rowlf doesn't get one and becomes depressed.
It's Valentine's Day for the Babies, and each of them gets a special Valentine's Day cookie. Sadly, Rowlf didn't get one and falls into despair but, the babies have done anything, to help Rowlf overcome his depression. Finally, the problem was solved: Nanny, left Rowlf's cookie on the cookie sheet, and Rowlf's depression was over.—Pac-man