Just days after political demonstrations lead to the deaths of scores of students, the Summer Olympics open in Mexico City. Before an international audience, two American sprinters protest the national anthem from the medal stand. As the presidential campaign tightens, President Johnson calls a halt to the bombing of North Vietnam, a move calculated to help the surging Humphrey campaign. Richard Nixon attempts to sabotage the peace talks and the insurgent candidacy of independent George Wallace threatens to throw the election to the House of Representatives. On Election Day, the vote is so close that the winner, Richard Nixon, is not declared until the following morning. On television, Elvis Presley launches a comeback of his own. The widows of Senator Robert Kennedy and Rev. Martin Luther King, Jr. look back at the year. On Christmas Eve, Apollo 8 comes around the dark side of the moon and broadcasts, live around the world, the first-ever images of the earth from space.