About to retire, the cantor of a small reform Jewish synagogue in Brooklyn, NY, mounts a production of the "Brooklyn Baseball Cantata," a largely forgotten musical oddity from 1940. Composed by George Kleinsinger with lyrics by Michael Stratton, the operetta imagines a moment when Brooklynites awake from a borough-wide slumber to share a dream that their beloved Brooklyn Dodgers finally beat The New York Yankees, their arch-rivals from the Bronx, in a World Series. "The Cantor's Last Cantata," follows the amateur choir members as they rehearse, kibbutz, nosh Entenmanns and perform for the congregation.