“Dear Mr. Fidrych” follows 12-year-old Marty Jones, a budding poet and aspiring baseball player in 1976 Detroit. Inspired by Detroit Tigers’ rookie sensation Mark “The Bird” Fidrych, Marty pens a poem to his hero and receives a life-changing letter in return, setting him on a winning streak in his own Little League games.

Fast forward 30 years, and Marty is a middle-aged advertising executive stuck in a rut. His son discovers the old letters from Fidrych, prompting a father-son road trip in search of the retired baseball star. The journey serves as a catalyst for Marty to rediscover his youthful optimism and reconnect with his family.