The Hitchhiker's Guide to the Galaxy is a comedy science fiction series created by Douglas Adams. Originally a radio comedy broadcast on BBC Radio 4 in 1978, it was later adapted to other formats: a book series, a TV series, an adventure game, a movie, perhaps others.
All start the same way: Arthur Dent is trying to prevent his house from being bulldozed when his friend Ford Prefect turns up and informs him that the Earth is about to be demolished, and whisks him into outer space.
Ford introduces Arthur to his myriad friends, including many-headed President Zaphod Beeblebrox and sexy refugee Trillian. Arthur makes his way across the stars while seeking the meaning of life, or something close to it.