Filled with the comforting charm of Grandpa's and vivid, cheerful illustrations, little bunnies Emily and Louie have their Grandpa guess why they've shown up at his door with a special gift. It's December 24th and bunnies Emily and Louie have just arrived at Grandpa and Grandma Rabbit's house with a special present in tow for Grandpa. But before he can open it, Emily and Louie insist Grandpa guess what the special holiday is. Acting out various characters and stories, Grandma guesses every holiday on the calendar, from Cupid on Valentine's Day to Rabbicula on Halloween, but he never lands on what makes December 24th so special.