Once Upon a Time... Man

While the Roman Empire dozes peacefully under the Pax Romana, we see how processions of invaders are spreading throughout the land. Later, in a great cloud of dust we see a horde gallop by: the Huns of Attila. We see a peaceful settlement whose inhabitants - which include our friends - are going about their daily chores; their children are at play. Suddenly, the bell tower sounds the alarm.