Waking up one morning, a British man named Arthur Dent awakens and finds out that his house is going to be demolished. But for Arthur, the demolition of his house is only the beginning, Arthur's friend, eccentric Ford Prefect, reveals to Earth that he is not human and he is an alien from a planet called Betelgeuse and is a researcher of a electronic book called "The Hitchhiker's Guide to the Galaxy". Ford saves Arthur when Earth is wiped out by the Vogons, who have demolished the Earth to make way for a new intergalactic motorway. Embarking on a intergalactic adventure, Arthur and Ford are joined by two-headed former President of the galaxy, Zaphod Beeblebrox, intelligent human woman Trillian, and Marvin, a depressed android, travels across the galaxy on-board Zaphod's stolen spaceship "Heart of Gold", where they set out to discover the meaning of life and travel to the newly constructed Earth II, where Slartibartfast reveals the truth about the original Earth, that was destroyed by the Vogons.