The Hitchhiker's Guide to the Galaxy a human-like alien writer for the eccentric, electronic travel guide "The Hitchhiker's Guide to the Galaxy", by hitchhiking onto a passing Vogon spacecraft. Following his rescue, Dent explores the galaxy with Prefect and encounters Trillian, another human who had been taken from Earth prior to its destruction by the President of the Galaxy, the two-headed Zaphod Beeblebrox, and the depressed Marvin, the Paranoid Android. Certain narrative details were changed between the various adaptations. The various versions follow the same basic plot but they are in many places mutually contradictory, as Adams rewrote the story substantially for each new adaptation. Throughout
Douglas Adams at the BBC original transmissions, had been discussed in biographies of Adams (e.g. "Don't Panic" by Neil Gaiman and "Wish You Were Here" by Nick Webb). In addition, the complete script for "The Lost Hitchhiker Sketch" appears in the 25th anniversary edition of "". Disc one covers subjects A to G, disc two covers subjects H to P, and disc three covers subjects Q to Z. Note: The CD set was released in early September 2004, after the Tertiary Phase of "The Hitchhiker's Guide to the Galaxy" had been recorded, but before transmissions began. The earliest material on the set is from August