Plot synopsis: What will happen on December 21, 2012? Nobody knows for sure. This is the day the Mayan calendar ends. This lost civilization believed in a great upheaval. Are we in danger? The answer lies in Mexico. A new codex has been found with information about the end of the era. Four children go looking. But they're not the only ones. Who is trying to stop them? And do they know how to avoid all dangers?