The death of President Kennedy thrust Lyndon Johnson into the nation's highest office--and a new chapter in a bitter feud with Robert Kennedy. One of the greatest rivalries in U.S. history, this feature-length look at their tumultuous relationship features never-before-heard oral histories and LBJ's White House telephone recordings. We reveal how the Kennedys saw Johnson as a threat to the New Frontier, while LBJ nursed a deep-seated fear of being overshadowed by an increasingly mythologized JFK legacy.