The early life of the future baseball star is told here. Jackie Robinson was a young college student and athlete who learned never to take racist attacks lying down. This eventually gets him into trouble when he is drafted in World War II and assigned to a Texas training camp deep in the racist south. The film climaxes when Jackie Robinson must face a court-martial for insubordination when he refused to go to the back of the bus when the white bus driver ordered him, knowing that he was in his rights to do so.