Hot Stove League follows the journey of Baek Seung-soo, a newly appointed general manager of the professional baseball team 'Dreams,' which has consistently ranked at the bottom of the league. Despite his lack of experience in baseball, Seung-soo is a professional who has led various sports teams to championships in other disciplines. He is tasked with the monumental challenge of rebuilding the struggling team, which is plagued by internal politics, low morale, and a lack of resources. As Seung-soo begins to implement radical changes, he faces intense resistance from the team's management, coaching staff, and veteran players who are comfortable with the status quo. Alongside Lee Se-young, the team's passionate operations manager, he navigates the complex 'hot stove' period—the off-season where trades, contract negotiations, and scouting take place. The series provides a deep, realistic look at the front-office operations of a professional sports organization, highlighting the strategic battles and personal growth required to turn a losing team into a contender.