An upcoming show about a Detroit-area strength coach is set to hold its local premiere. The first episode of Discovery Channel's "American Muscle" series is to be screened Thursday at Barwis Methods Training Center in Plymouth. The show follows Mike Barwis and the work he does at his gym. Not only does Barwis train top pro, college and Olympic athletes, but he also works with patients who have suffered various injuries, including some who were told they would never walk again. The first episode of "American Muscle," featuring Seattle Seahawks cornerback Richard Sherman, is to air July 9. In addition to screening that episode, Thursday's event is to include a reception and a question-and-answer session with Barwis and other cast members.