The Moon formed 4.5 billion years ago when another planet slammed into the early Earth, an impact that knocked the planet onto the 23-degree tilt that still gives us our seasons. The film traces what happened next: the Lunar Cataclysm, a bombardment so violent it left 99 percent of the craters visible on the Moon today, and the era when a much closer Moon pulled tides thousands of feet high onto Earth's coastlines, tides scientists here credit with stirring the minerals that started life. Physicist Neil Comins and astronomer Guillermo Gonzalez explain the mechanics, from ancient tidal forces to what lunar meteorites might reveal about exchange between the two worlds. The film also tests present-day claims about the Moon's pull, checking San Francisco Police Department reports that crime spikes during a full moon against the actual data, and weighing whether lunar and solar alignment can trigger earthquakes. It closes on the Moon's slow drift away from Earth and what that eventual distance means for the planet's stability.