When a pretty young nun, Sister Incarnación (Ana de la Reguera, a Penelope Cruz look-alike) arrives at the monastery, Ignacio is inspired to put on the tights, cape and mask and become Nacho, the "luchadore" he has always longed to be. And along comes a local wrestling contest to provide the opportunity to earn the needed money. To do this, he recruits a skinny homeless man (Héctor Jiménez) to become his tag-team partner, Esqueleto (“the skeleton”). Now if they can just figure out how to wrestle.

They inevitably get their asses kicked by masked wrestlers with names like "Ramses" and "El Snowflake," but get paid anyway because, as a promoter says, "the people like you." The money goes back to the monastery. But Nacho, knowing Sister Incarnación would disapprove, conceals his endeavours from the folks back at the orphanage.

What is missing in plot and character development is made up for in silly fun. But Nacho Libre sets Black free from almost every other comic constraint, making the movie somewhat irresistible. All this comes together with Black, who clearly believes what he's selling, even when it's a bit far-fetched. He somehow makes Nacho, the Mexican monastery cook who dreams of wrestling stardom, somewhat believable. Oh, and he drives a power lawn mower.