Thirty-something seismologist Beltrán Soler knows about earthquakes, but he doesn't quite grasp the notion that life, like the tectonic plate movement he studies, is in constant motion. One day he begins to remember the fifty most important movies of his life, ones he saw as a child and teenager growing up in California and Chile. As his mind ranges from Willy Wonka and the Chocolate Factory to Close Encounters of the Third Kind, Beltrán reconnects with his past. Through his cinematic journey he ultimately comes to terms with his eccentric family's search for what makes the world physically shift around them -- and for the other, not so easy to measure, cultural shifts that throw us all off balance in different ways.