In the year 1000 AD a town named
Leene's Square, a young swordsman named Crono dwells. He wakes up
and goes to the Millennia Fair. Inside the fair he bumps into a
girl named Marle. But little did Crono know, Marle is really
Princess Nadia, disguised as a normal girl to have fun at the
fair. They both explore the fair and go to a science exhibit
hosted by Crono's friend Lucca. Lucca shows off with
her

father a time machine. Lucca asks
for a volunteer to test it out. But everyone was too scared to go
but Crono volunteers to try out the machine. Marle, who was
fascinated, wanted to try the machine too. But when she stepped
on, her magical pendant reacted to the machine and warped her into
the past leaving the pendant in the present.
Crono, being brave takes the pendant and goes off to save her. But
as time passes, more and more tasks await them to save the past,
present, future and the end of time.