The barren, desolate world of 2300 A.D. sits in darkness, receiving only a few beams of light that bleed through the cloudy, black atmosphere. Wind howls over cities bereft of most life and gutted hundreds of years ago. Human civilization consists of a scant number of dwellers in self-contained domes who live a monotonous existence without hope. They survive with the Enertron, a device that preserves human health but cannot cure the ever-present feeling of hunger. The most vital forms of life are machines populating Factory and Geno Dome, where the Mother Brain AI conspires to create an order of steel. Robo lies dormant in the Proto Dome, while far away, Johnny races in Lab 32 for his following of fans—the only glimpse of entertainment and fun in a world reigned over by eternal night. The Guru Belthasar also resides in this era, thrown here from the Ocean Palace Incident. The conditions drive him to insanity as he completes the Epoch. He is not the only influence from Zeal—the palace that once housed the Sun Stone has arisen from the bottom of the sea.
Crono, Marle, and Lucca first arrive after escaping the forces of the Chancellor in 1000 A.D. They investigate the lower regions of the Arris Dome, discovering a seed that gives hope to the dome's residents. Doan, leader of the Arris Dome and a descendant of Marle, gives the party his Bike Key for use in Lab 32. Johnny then challenges Crono to a race, and players can earn prizes according to how long he or she spends in front of Johnny. They next find Robo in the Proto Dome, where Lucca reactives him; he helps the party open the door to a Gate. The party later returns to retrieve the Epoch, stored in the Keeper's Dome's hangar by Belthasar's Nu. After the Ocean Palace Incident in the Keystone Timelines, the party returns once more to ascend Death Peak, where Lavos is said to preside over the ruined world. They activate the Chrono Trigger, taking them to the Ocean Palace in 12000 B.C. to extract Crono a split-second before Lavos obliterates him. The party then make two visits for sidequests. They first find the Sun Stone within the Sun Palace (guarded by the Son of Sun) and take it to 65000000 B.C. for recharging. It is then reclaimed from this era's Sun Keep (although the party must get it back from the Porre Mayor first). Lastly, Robo discovers that his parent Mother Brain AI has gone insane and is slaughtering humans to create a machine civilization. The party stops Mother Brain's twisted ambition, and Robo inadvertently kills his brainwashed friend Atropos XR (though she will be fine in the new timeline after Lavos's defeat).
Translation: Near Future
-Doan, of the Guardia family line, directs the Arris Dome. -A deceased resident of the Arris Dome holds a magic seed. -Belthasar continues work on the Epoch at the Keeper's Dome. -Mother Brain murders humans at the Geno Dome in her plan to create a robotic nation. -Belthasar finishes the Epoch.
***CRONO'S ACTIONS IN KEYSTONE TIMELINES*** *Mother Brain murders humans at the Geno Dome in her plan to create a robotic nation. -Crono, Marle, and Lucca warp in from 1000 A.D. after being chased by the Chancellor. -Crono, Marle, and Lucca learn of the Day of Lavos in the Arris Dome, which is controlled by the Guardia Family line. -Crono, Marle, and Lucca decide to save the world from Lavos. -A magic seed is planted in the Arris Dome. -A man from the Arris Dome makes his way through the ruins and plants a seed from the magic seed in the Trann dome. -Crono, Marle, and Lucca discover Robo and repair him. -Robo decides to help save the world; the party then warps to the End of Time. -Belthasar finishes the Epoch ~ Wings of Time, and passes away. -Crono's party warps in from 65000000 B.C. to access the Epoch. -Crono's party warps back to 12000 B.C. -Crono's party warps from the End of Time to ask Belthasar's Nu about the Chrono Trigger. -Crono's party warps to 1000 A.D. to retrieve a clone of Crono from Norstein Bekkler. -Crono's party returns from 1000 A.D. with the clone. -The Nu instructs Crono to climb Death Peak with the help of some Poyozo dolls. -Crono's party switches the Nu off. -Crono's party climbs Death Peak, fighting Lavos spawns along the way. -The Chrono Trigger shatters on top of Death Peak. -Crono's party is sent to the moment in which Crono died; time is frozen. -Crono's party replaces Crono with the doll, and returns to the End of Time. -Crono's party warps in from 1000 A.D. to defeat Mother Brain at the Geno Dome. -Crono's partly, with Robo in the lead, defeats Mother Brain. Robo is forced to kill his former love since she has been brainwashed by Mother Brain. -Crono's party flies to the Sun Palace, which has surfaced, to obtain the Sun stone. -The Son of Sun attacks Crono's party. It is the Sun stone, resisting with its last bit of energy. -Crono's party defeats the Son of Sun, and obtains the Sun stone -- Now a moon stone. -Crono's party warps to 65000000 B.C. to recharge the Sun stone. -Crono's party returns to 600 A.D. -Crono's party warps in from 1000 A.D. to pick up the Sun stone. -Crono's party warps back to 1000 A.D. to Lucca's house to craft the Sun stone. -Robo and Doan arrive here from 1000 A.D. to find a better future. ***HISTORY AFTER LAVOS IS DEFEATED (KEYSTONE T-1)*** -Belthasar arrives here and founds Chronopolis.