WHAT'S HAPPENED TO DAD? One magical morning, Mikey's dad just isn't his usual self. He doesn't go to work, and he doesn't drive Mikey to school. He's having a dinosaur day! When Dad becomes a dinosaur he gets to play on the playground with Mikey, take a shower in the yard, and have pizza for dinner. He and Mikey have a real blast. But by the end of the day, Mikey wants his old dad back. Then, the next morning, something strange happens -- to Mom!