After Earth is demolished to make way for a new hyperspatial expressway, Arthur Dent begins to hitchhike through space.

"Mankind will not get to fight for its destiny. They must sing. A century ago, the Sentience Wars tore the galaxy apart and nearly ended the entire concept of intelligent space-faring life. In the aftermath, a curious tradition was invented by the remnants of civilization. Something to cheer up everyone who was left. Something to celebrate having escaped total annihilation by the skin of one's teeth, if indeed one has skin. Or teeth. Something to...