The theme of Chrono Trigger deals with the concepts of time, hence the first part of its name. An entity by the name of Lavos comes to earth in the distant past, at the very birth of civilization and buries itself within the planet, laying dormant within it and slowly suffocating it. It is an entity that has only one purpose, and that is to destroy a world and move on to the next one. In the year 12,000 B.C., it was summoned by the mad Queen Zeal, who was drunk with power from the alien. This summoning set into motion the events that would shape a world. People from the present, past and future gathered together after learning of the truth of Lavos and its power. Together, they summoned power that they never realized they had and succeeded in ridding the world of the poisonous entity that was Lavos, and restored time back to normal.
Now, the people of the world of Chrono Trigger are living happily, in peace. The heroes are now living their own lives and doing as they wish. Some have moved on to politcs. Some are still bound to duty. Some are trying to restore a world. And one is in search of those that were lost…