SummerSlam Night 1 featured a pivotal moment as Oba Femi conquered Brock Lesnar in a Hell in a Cell match, ending Lesnar's unbeaten streak and solidifying Femi as WWE's next megastar. The victory follows Femi's WrestleMania win over Lesnar and King of the Ring triumph, marking him as the promotion's rising force. Meanwhile, CM Punk retained his Undisputed WWE Championship against Cody Rhodes, but Randy Orton's surprise return disrupted the match, setting up future conflicts.

Elsewhere, Solo Sikoa emerged as a babyface after defeating The Bloodline, while Liv Morgan retained her Women's World Championship. The card concluded with multiple storyline shifts, leaving Femi's next move uncertain as he could challenge for the World Heavyweight Championship.