PLOT
Triplemanía Regia II was a professional wrestling pay-per-view event by AAA that was originally scheduled to take place on October 10, 2020 but was postponed and later cancelled on November 30 due to the COVID-19 pandemic. However, on October 18, 2021, AAA announced that the event would be occurring on December 4 at the Estadio de Béisbol Monterrey in Monterrey, Mexico. It marked the 29th year in a row that AAA has held a Triplemanía show, and the 36th overall show held under the Triplemanía banner since 1993.