Millions watched as KSI triumphed over Joe Weller in what became the most significant amateur boxing match ever. However, what remained hidden from the public eye was the grueling effort, relentless training, and sheer determination that fueled KSI’s journey. This documentary offers an exclusive, behind-the-scenes glimpse into KSI’s life, showcasing the blood, sweat, and dedication that defined his path. It reveals the untold story of Knowledge, Strength, and Integrity, chronicling how JJ, with his 18 million YouTube subscribers, transformed from an entertainer into a formidable athlete.