The movie is full of adventures about robot-like David, who is like a human child and has the ability to love so that a human family can raise them as their second child. Events follow until the end, when the planet hits a new ice age. David is extracted from the snow and modified by high-tech aliens with fantastic technology. To become a human child to return to his family.
The most philosophical film in Kubrick's canon, the most intelligent in Spielberg's, and quite possibly the film with the most contemporary relevance that either one has made since Kubrick released Dr. Strangelove in 1964.
A confined domestic drama, a considerable morality tale, a fleeting futuristic noir, a persecution parable, an on-the-nose fairy tale adventure... and then it keeps going.