Lou Gehrig's life and career seem idyllic until he begins to notice an alarming decline in his physical strength and coordination. After a series of struggles on the field, he receives a devastating diagnosis of Amyotrophic Lateral Sclerosis (ALS), a fatal neurological disease that would later become known as "Lou Gehrig's Disease." The film poignantly depicts the emotional turmoil that Lou and his wife Eleanor face as his condition forces him to retire from baseball in 1939. The climactic and most memorable moment of the film is the recreation of his farewell ceremony at Yankee Stadium. Despite the grim prognosis, Gehrig addresses the crowd and famously declares himself to be "the luckiest man on the face of the earth" for the friends, family, and career he had, leaving behind a lasting legacy of courage and dignity in the face of insurmountable odds.