In a major announcement sure to thrill Red Sox Nation and baseball fans across the globe, Netflix has revealed the upcoming release of “The Underdog” — a powerful, emotionally charged new documentary chronicling the extraordinary journey of the Boston Red Sox. The series is scheduled to premiere September 1, 2025, just as the MLB postseason race begins to heat up.
Promising a raw, honest, and deeply human look into one of baseball’s most storied franchises, The Underdog is already being described by insiders as “the definitive Red Sox documentary” — combining the heartbreak, triumph, legends, curses, and comebacks that have defined the team’s dramatic legacy.
From Curse to Comeback — and Everything In Between
Unlike traditional baseball documentaries that focus solely on wins and losses, The Underdog explores the soul of the franchise: a team that endured 86 years without a championship, built a fanbase on hope and heartbreak, and finally found redemption in a series of historic, unforgettable triumphs.
The documentary traces the evolution of the team from the heartbreak of 1986, through the legendary comeback against the Yankees in 2004, to the championship runs in 2007, 2013, and 2018. But it doesn’t shy away from the darker chapters either — including internal scandals, near-misses, fan tension, and controversial trades that shaped the team’s identity.
A-List Production Team, Star-Studded Cast
Directed by Ben Affleck, a lifelong Red Sox fan, and produced by Matt Damon in collaboration with Netflix Sports, the six-part series features exclusive interviews with Red Sox legends like David Ortiz, Pedro Martínez, Jason Varitek, Dustin Pedroia, and Mookie Betts, as well as behind-the-scenes insight from executives, broadcasters, and longtime fans.
“This isn’t just a story about baseball,” said Affleck. “It’s about pain, passion, loyalty, and the kind of belief that spans generations. The Red Sox are more than a team — they’re a religion in New England.”
Also featured are interviews with famous Red Sox fans — including Stephen King, Conan O’Brien, and Ken Burns — offering cultural perspective on what the team means to the city of Boston and beyond.
The Underdog Spirit
The title “The Underdog” reflects the enduring image of the Red Sox as the scrappy, resilient fighter — always underestimated, often doubted, but never without heart. Even during their years of dominance, the spirit of the underdog has remained central to the team’s identity.
The film explores the iconic rivalry with the New York Yankees, the impact of Fenway Park, and the emotional bond between the team and its fanbase, particularly in moments of tragedy and triumph — like the 2013 World Series win following the Boston Marathon bombing.
Release & Format
Netflix has confirmed that “The Underdog” will be released as a limited documentary series of six hour-long episodes, with all episodes dropping on September 1, 2025, ahead of Labor Day weekend.
The trailer, released today, has already racked up millions of views — showing a montage of iconic moments from Fenway Park, Big Papi’s famous speeches, and shots of young fans growing up in Red Sox gear.
