During the match, Cena is about to completely destroy Kane.
Kane manages to get a mic and tells him to do it.
Then the arena goes dark.
All of a sudden the Undertaker's music goes off and he walks out onto the ramp.
Kane and Cena go to different sides of the ring and Undertaker runs to the ring.
As he enters it, Kane immediately escapes and retreats up the ramp while John Cena escapes and stands in front of the announce table.
The match ends as both are counted out, and all three men exchanging stares.
From here, Kane, Cena, and Undertaker are on RAW to talk about what happened.
Undertaker says that he returned to stop Cena from doing something he would regret.
Kane serves as the devil and Undertaker serves as the good guy. Cena must pick between them.
This could lead to another match up involving all three at Elimination Chamber where Cena needs to pick good or evil.
Either way, Cena can go on to face the Rock, and Undertaker can face Kane at WrestleMania to end his storied career 20-0.