It's the night before Christmas & all through the house, one creature is stirring, but he isn't a mouse! Charlie forgot one thing before he went to bed on Christmas Eve. He didn't shut Oscar's cage door tightly. Oscar, Charlie's bright green pet iguana, who loves lettuce & strawberries, can't resist a midnight adventure to find out why Charlie's mom has placed glittering green & red decorations all around the house, even on his cage!