A group of plush puppies live a thousand adventures in a magical park called Sweet Park. Mary, one of the puppies, bakes a delicious cake to share with her friends, but strangely, the cake disappears. Where could it have gone? To make matters worse, it's Mary's birthday, but it seems her friends have forgotten all about her party. Will Mary be able to solve the mystery of the missing cake and have a happy birthday after all?—Gustavo Garrafa