What's the story?Eric Young and Killian Dain both posted messages on Twitter today directed towards The Undisputed ERA ahead of their six-man tag match on NXT tonight. Take a look at those tweets below.We showed you that you were NOT untouchable! TONIGHT we show you so much more! #SANiTY pic.twitter.com/U4e7Akowb5— Eric Young (@TheEricYoung) October 18, 2017They tried to use the #SANITY blueprint, but they couldnt handle the consequences. Tonight we expose the flaws of the so called "Undisputed" pic.twitter.com/KwwITX3alh— Killian Dain (@KillianDain) October 18, 2017In case you didn't know...This feud started at NXT Takeover: Brooklyn III this past August. SAnitY defeated The Authors Of Pain for the NXT Tag Team Championships, and after the match Bobby Fish and Kyle O'Reilly delivered a surprise attack.Later on in the night, Fish and O'Reilly would return, this time with the debuting Adam Cole to attack the new NXT Champion Drew McIntyre.The heart of the matterEver since NXT Takeover: Brooklyn III, these two factions have been at each other's throats. The Undisputed ERA delivered their next attack on SAnitY in the parking lot outside of the NXT Arena at Full Sail. The cameras didn't catch the attack live, but they showed the aftermath.Read More: The Undisputed ERA reveal their plans to dominate NXTThat brings us to tonight's edition of NXT where SAnitY's Eric Young, Alexander Wolfe, and Killian Dain take on The Undisputed ERA of Adam Cole, Kyle O'Reilly, and Bobby Fish. Expect a lot of chaos in the match, and if The Unidsputed ERA comes out victorious, they could earn a future NXT Tag Team Championship match.What's next?As previously mentioned, this six-man tag team match will occur on tonight's edition of NXT on the WWE Network. It could have implications on the tag titles ahead of NXT Takeover: WarGames which occurs on November 18th in Houston.Author's takeI have enjoyed what they've done with The Undisputed ERA so far. The fact that they're focusing not just on SAnitY, but Drew McIntyre, is a great way to show the NXT Universe just how good these three guys are.As for tonight's match, expect a lot of chaos and insanity (no pun intended). It's hard to imagine that this match will end any other way than a disqualification, but we will find out in a few hours!