For generations, the people of the City of Ember have flourished in an amazing world of glittering lights. But Ember's once powerful generator is failing and the great lamps that illuminate the city are starting to flicker. Now, two teenagers, in a race against time, must search Ember for clues that will unlock the ancient mystery of the city's existence, before the the lights go out forever.
There is a mutated killer star nosed mole that might frighten some youth.
At about 45 minutes into the movie, the mole tries to attack the 2 main characters, and is later implied to have eaten the mayor.
Towards the end, there is some suspense involving fixing a water wheel in time.
