In a garden in a London suburb, corpses sprout out of the earth on during a live television gardening programme called Down to Earth. However, it soon appears that these human bodies are not dead people, they are grown there, like plants. The question is who is growing these bodies and for which purpose.
In the year 2035, convict James Cole (Bruce Willis) reluctantly volunteers to be sent back in time to discover the origin of a deadly virus that wiped out nearly all of the earth's population and forced the survivors into underground communities.
Aimlessly whiling away their days in the concrete environs of their dead-end suburbia, Vinz, Hubert, and Said -- a Jew, African, and an Arab -- give human faces to France's immigrant populations, their bristling resentment at their social marginalization slowly simmering until it reaches a climactic boiling point.
Furious that her late father only willed her his gloomy-looking mansion rather than his millions, Carrigan Crittenden is ready to burn the place to the ground when she discovers a map to a treasure hidden in the house.
Along with his new friends, a teenager who was arrested by the US Secret Service and banned from using a computer for writing a computer virus discovers a plot by a nefarious hacker, but they must use their computer skills to find the evidence while being pursued by the Secret Service and the evil computer genius behind the virus.