Valerian and Laureline are special operatives for the government of the human territories charged with maintaining order throughout the universe.

Under directive from their Commander, Valerian and Laureline embark on a mission to the breathtaking intergalactic city of Alpha, an ever-expanding metropolis of thousands of species from all corners of the universe.

Unfortunately, not everyone on Alpha shares in these same objectives; in fact, unseen forces are at work, placing our race in great danger.