Storylines
The event featured eight professional wrestling matches that involved different wrestlers from pre-existing scripted feuds, plots and storylines. Wrestlers portrayed either a villainous or fan favorite gimmick as they followed a series of events which generally built tension, leading to a wrestling match. All wrestlers were from the SmackDown! brand – a storyline division in which WWE assigned its employees to a different program, the other being Raw.
The main event featured WWE Champion John "Bradshaw" Layfield (JBL) defending the title against The Undertaker in a Last Ride match. The buildup to the match began after SummerSlam, where JBL defeated The Undertaker in a singles match via disqualification to retain his championship.[4][5] On the August 19 episode of SmackDown!, JBL wore a neck brace, to signify that he was recuperating from a chokeslam that The Undertaker gave him on top of his limo.[6][7] On the August 26 episode of SmackDown!, Orlando Jordan, JBL's chief of staff, defended the WWE Championship for JBL against The Undertaker.[8][9] The Undertaker won the match via disqualification following interference from JBL;
One of the featured matches was contested for the WWE United States Championship, in which Booker T defended the title against John Cena. At SummerSlam, Cena defeated Booker T in the first match of a "best of five" series.[5][12] On the August 26 episode of SmackDown!, the second match was won by Booker T, to even the series one-to-one.[8][9] On August 27 at a SmackDown! live event, Booker T defeated Cena to win the third match.[13] On the September 16 episode of SmackDown!, Cena defeated Booker T in the fourth match, making the series even at two wins apiece.[14] On the September 23 episode of SmackDown!, it was announced that the final series match would be scheduled at No Mercy.[15]
The other featured preliminary match was Kurt Angle versus The Big Show in a singles match. The buildup to the match began on the September 9 episode of SmackDown!, where a Lumberjack match was scheduled between Angle and Eddie Guerrero.[10][11] The match ended in a no contest when Big Show returned after a five-month absence by interfering in the match, chokeslamming both Angle and Guerrero in the process.[10][11] On the September 16 episode of SmackDown!, Big Show was given two contracts to choose from; one contract to face Guerrero and one contract to face Angle. Smackdown General Manager Theodore Long announced that Luther Reigns and Mark Jindrak will be banned from ringside and if anyone interferes in the match, they will be fired.[14] Big Show signed the contract with Guerrero's name on it. After signing it, Angle and his associate Luther Reigns, threw Guerrero out of the ring and offered Big Show a handshake.[14]