A film about a group of young baseball-enthusiasts who test the terrifying myth of Mr. Mertle owning a freakishly large and dangerous dog in his backyard.
Successful, arrogant baseball superstar Tommy "Santa" Santorelli travels back in time to 1976 and relives his boyhood days on the sandlot baseball team, and has the chance to this time choose friendship over glory.
(Note: This film doesn't ignore The Sandlot 2 (2005) and The Sandlot: Heading Home (2007). However, it does not reference them at all and is a direct prequel to The Sandlot (1993))