Nacho (Jack Black) is a young man who was raised in a Mexican monastery in Oaxaca and now works there as the cook, and takes it upon himself to rescue the holy place from financial ruin by joining a local Lucha Libre tournament and becoming one of the 'Luchadores'. Naturally, Nacho isn't acting out of purely altruistic measures, as he wishes to help Sister Encarnacion (Ana de la Reguera), a beautiful Mexican nun who has recently arrived at the monastery, as well as the gaggle of young orphans who live there.
The movie has the director of Napoleon Dynamite and the writer of Jack Black's School of Rock. And imdb's summary uses the word "gaggle." Awesome.