Ground Zero: In Your House was the 17th In Your House professional wrestling pay-per-view (PPV) event produced by the World Wrestling Federation (WWF, now WWE). It took place on September 7, 1997, at Louisville Gardens in Louisville, Kentucky. This was the first three-hour In Your House pay-per-view, and also the first to use the "In Your House" moniker as the subtitle rather than the main title. This was also the last event in which the entrance staging shaped like a suburban home was used, in favor of unique sets based around the name of the PPV going forward. The event is notable for featuring the first-ever singles match between Shawn Michaels and The Undertaker.Seven professional wrestling matches contested at the event. The main event saw Shawn Michaels and The Undertaker wrestle to a no contest. Also on the card, Bret Hart defeated The Patriot to retain the WWF Championship. The Headbangers (Mosh and Thrasher) won the vacant WWF Tag Team Championship in a Four-Way Tag Team Elimination match, and Brian Pillman defeated Goldust. Due to prior stipulations, Goldust's manager/wife (storyline and real-life) Marlena was required to become Pillman's personal assistant for 30 days.