In this tell-all book, Jay McGwire provides an inside look at his reclusive older brother, baseball slugger Mark McGwire and their All-American, sports-loving family, and also offers a detailed entry into the world of steroids. As Mark McGwire's younger brother, Jay McGwire had a front-row seat to the ups and downs of the slugger's storied and now controversial career. He played an integral role in helping Mark recover from injuries and turn into a stronger ballplayer to become baseball's home run king. He offers a detailed account of what really happened to Mark, how he got started on steroids, what he used, and the dramatic effect that steroids had on his body and on baseball history.