4. WWF In Your House 18: Badd Blood
On October 5, 1997 Shawn Michaels beat The Undertaker in the first ever Hell in a Cell match in History.
The Deadman already had Shawn beaten and was about to finish him, when Paul Bearer brought in his (kayfabe) brother Kane, who the Undertaker thought was killed in a fire when they were kids.
Kane finished him and Shawn Michaels got the 1-2-3.