Gift of the Gods Medallions were on the line in three matches.
Plus, Lucha Underground followed up on last week's Three-Way to the Grave match.
Penta debuted by interrupting the trios main event. Plus, Fenix faced Cavernario.
Mil Muertes took on Jeremiah Crane and Fenix in a three-way casket match.
LA Park and Rush faced off and King Phoenix (Rey Fenix) soared again on Friday night.
The second episode of season four featured a title match between rivals Pentagon Dark and Matanza Cueto.
The fourth season of Lucha Underground kicked off with Aztec Warfare IV.
Jeff Jarrett made an appearance and was added to the main event.
He had been battling heart problems, as he suffered heart attacks in both 2016 and 2017. It was also reported last week that he was in bad health.
Mysterio will be at AAA's Verano de Escandalo event in June.