When the owner of the Minnesota Twins passes away, he bequeaths the team to his preteen grandson. The newly minted head honcho quickly appoints himself manager, causing unrest in an organisation that struggles to take orders from a 12-year-old.
For decades, next-door neighbors and former friends John and Max have feuded, trading insults and wicked pranks. When an attractive widow moves in nearby, their bad blood erupts into a high-stakes rivalry full of naughty jokes and adolescent hijinks. Will this love triangle destroy the two old grumps? Or will the geriatric odd couple overcome their differences and rediscover their friendship?