The wanted criminal Richard Bruno Riddick (Vin Diesel) arrives on a planet called Helion Prime and finds himself up against an invading empire called the Necromongers, an army that plans to convert or kill all humans in the universe.

As a new threat to the galaxy rises, Rey, a desert scavenger, and Finn, an ex-stormtrooper, must join Han Solo and Chewbacca to search for the one hope of restoring peace.

The Autobots learn of a Cybertronian spacecraft hidden on the moon, and race against the Decepticons to reach it and to learn its secrets.