For generations, the people of the City of Ember have flourished in an amazing world of glittering lights -- underground. But Ember's once powerful generator is failing... and the great lamps that illuminate the city are starting to flicker.
Now, in a race against time, the citizens must search Ember for clues that will unlock the ancient mystery of the city's existence, and escape before the lights go out forever.
Based on the novel by Jeanne Duprau.