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.