| In the 22nd century, rising sea levels from global warming | |
| have wiped out coastal cities and altered the world's climate. | |
| With the human population in decline, nations have created | |
| humanoid robots called mechas to fulfill various roles. | |
| In Madison, New Jersey, David, an 11-year-old prototype mecha | |
| child capable of love, is given to Henry Swinton and his wife | |
| Monica, whose son Martin is in suspended animation. Monica | |
| initially feels uncomfortable but warms to David after he is | |
| activated and imprinted. David befriends Teddy, Martin's robotic | |
| teddy bear. | |
| After Martin is cured and brought home, he goads David into | |
| cutting off a piece of Monica's hair. Later, David accidentally | |
| pokes Monica's eye with scissors. During a pool party, David | |
| reacts to being poked with a knife and both he and Martin fall | |
| into the pool. Martin is saved, but David is blamed. | |
| Henry convinces Monica to return David to his creators for | |
| destruction, but instead, she abandons him in the woods with | |
| Teddy. David, believing that becoming human will regain Monica's | |
| love, decides to find the Blue Fairy. | |
| David and Teddy are captured by the "Flesh Fair", where obsolete | |
| mechas are destroyed. David pleads for his life, and the audience | |
| allows him to escape with Gigolo Joe, a mecha framed for murder. | |
| They travel to Rouge City, where "Dr. Know", a holographic answer | |
| engine, directs them to the ruins of New York City and suggests | |
| that the Blue Fairy may help. | |
| David meets Professor Hobby, who shows him copies of himself, | |
| including female variants. Disheartened, David attempts suicide, | |
| but Joe rescues him. They find the Blue Fairy, which turns out | |
| to be a statue. David repeatedly asks the statue to turn him | |
| into a real boy until his power source is depleted. | |
| Two thousand years later, humanity is extinct and Manhattan is | |
| buried under ice. Mechas have evolved, and a group called the | |
| Specialists resurrect David and Teddy. They reconstruct the Swinton | |
| home from David's memories and explain that he cannot become human. | |
| However, they recreate Monica using genetic material from the | |
| strand of hair Teddy kept. Monica can live for only one day. | |
| David spends his happiest day with Monica, and as she falls asleep, | |
| she tells him she has always loved him. David lies down next to her | |
| and closes his eyes. | |