Underground Sound - Lucha Underground recap for August 16, 2017

In the training room, Cage is on the weights when Catrina shows up. She asks if he knows what the gauntlet really is. He says it is his, but Catrina says that doesn't belong to him and soon his soul won't belong to him. She says that the gauntlet contains destructive magic that will eventually consume him. Cage says he has never took to well to the easy way as he puts the gauntlet on, but Catrina tells him he will hate the hard way even more. Cage swings at her, but she disappears.

Dario Cueto is in his office when Joey Ryan enters. He says that he was pretty embarassed for Joey. Joey, reminding Cueto that he told him to report to him if he saw anything suspicious, tells Dario Cueto that Veneno is really Cortez Castro. He gives Joey Ryan a proper chance at revenge next week by making Sexy Star vs. Veneno a mask vs. mask match, feeling that Sexy Star is more likely to win and that Veneno will eventually be exposed.

Prince Puma beats Fenix to continue to the finals of the Cueto Cup Tournament. During the match, Marty "The Moth" Martinez shows up and harasses ring announcer Melissa Santos. Fenix takes Marty out with a top rope moonsault, and that costs him the match.

In the locker room, Sexy Star notices her water bottle shake. Nearby, Mil Muertes punches a punching bag so hard it breaks the window in Dario Cueto's office. Catrina shows up, then Cage attacks Mil Muertes with a heavy weight. It is revealed that Cage is wearing the gauntlet when he says to Catrina "You were saying?" Mil Muertes gets up, but Catrina says his time will come, and to use his anger to break Pentagon Dark in two.

Pentagon Dark beats Mil Muertes - who is seen clutching his right rib before the match - after kicking Catrina from the apron to face Fenix in the finals of the Cueto Cup Tournament. After the match, Pentagon Dark tries to break Mil Muertes' arm, but Mil Muertes overpowers him and rolls out of the ring.

Before the next match, Dario Cueto announces that next week will have one of the greatest title match in Lucha Underground history in Rey Mysterio Jr. vs. Johnny Mundo for the Lucha Underground Championship. Before that happens, however, he asks both Rey and Mundo to come to the ring for last words, as he loves it when his competitors "talk shit to each other." Rey shows up first, followed by Johnny Mundo, who shows up with his own security guards. Johnny says if anybody has any dreams of taking the Lucha Underground title from, he is here to crush them right now just like he crushes everything. He says he has worked harder than he has his entire life just to take Rey to Slamtown next week, and sends his security guards ahead of him into the ring. Mundo says it was good to see Rey's son Dominic, and that he got his size from his mother. He goes on to make fun of Rey's size and says that if Dominic was his kid, he would be worried. He then questions if Rey is Dominic's real dad, and Rey immediately beats up Johnny Mundo. After Mundo gets back in the ring, Mundo's security holds Rey back, but that isn't enough to keep Rey from fighting back. Rey then fights off one of the security guards, then the rest of The Worldwide Underground (Taya, "The Darewolf" PJ Black, Jack Evans, Ricky Mandel) crotches Rey on the ring post before surround him, pinning him to the floor and letting Johnny Mundo curb stomp him. Suddenly, El Dragon Azteca Jr., Sexy Star and The Mack all fight off Mundo's security before overpowering The Worldwide Underground. Rey and Mundo then go at it in the ring, and Prince Puma confronts Mundo before loking at Rey, then Pentagon Dark also gets in the ring. Puma and Pentagon brawl while Rey and Mundo continue fighting each other, and Pentagon Dark then starts superkicking everybody. Mil Muertes shows up as Puma and Pentagon Dark fight each other, and levels both men. Cage then shows up and discus punches Rey before putting Mundo in a devastating powerbomb. Cage and Mil Muertes then stare down briefly before brawling with each other. Their brawl goes to the outside of the ring. Marty "The Moth" Martinez shows up, but Fenix goes after him. Mariposa also shows up and fights alongside Marty. Joey Ryan, Vinny Massaro, The Rabbit Clan (Paul London, Mala Suerte, Saltador), Jeremiah Crane, Killshot, Dante Fox all show up and fight each other one by one. Prince Puma takes numerous wrestlers and referees out with a 450 splash, then Rey hits Mundo with the 619 and lifts the Lucha Underground Championship up in the air to end the show.