Arthur Dent is already having a really bad day, even before the Earth gets demolished to make way for a new hyperspace bypass. After that things get much, much worse.
With just a towel, a small yellow fish and a book" Arthur has to navigate through a very hostile universe in the company of a gang of unreliable alien oddballs. Luckily the fish is quite good at languages. And the book is Hitchhiker's Guide to the Galaxy