General Mac Arthur orders the United Nation forces to cross the 38th Parallel and invade North Korea.  The First Corp capture Pyongyang, the capital of North Korea.  The South Korean First Corp capture the port of Wonsan before the Marines can land there.  An parachute landing north of Pyongyang fails to trap the North Korean Army.  A trainload of murdered American prisoners of war is discover.  A biography of George Marshall, the American Secretary of Defence.