Joe Stoshack's dad has been in a car accident! When Stosh visits him in the hospital, his dad tells him about the great Mickey Mantle and an unfortunate fall in Yankee Stadium that changed Mantle's career. "I've been thinking about it for a long time. Go back to 1951. You can warn him. You're the only one who can do it," Dad whispers. So while baby-sitting his younger cousin, Samantha, Stosh sits down with a baseball card in hand, ready to travel through time. But when he opens his eyes, he's not in Yankee Stadium; he's in Milwaukee on June 8, 1944. Stosh is seven years early and in the wrong town. What has gone wrong? You'll be on the edge of your seat for Joe Stoshack's fifth amazing baseball card adventure!