History professor David Rhodes has never gotten over the death of his older brother, 1966 in Vietnam. When he hears the rumor that a famous professor is working on a time machine, he immedia... Read allHistory professor David Rhodes has never gotten over the death of his older brother, 1966 in Vietnam. When he hears the rumor that a famous professor is working on a time machine, he immediately contacts him and persuades him to allow him to travel back in time and correct histor... Read allHistory professor David Rhodes has never gotten over the death of his older brother, 1966 in Vietnam. When he hears the rumor that a famous professor is working on a time machine, he immediately contacts him and persuades him to allow him to travel back in time and correct history. If he could save President Kennedy's life, the Vietnam war might never have happened.