Henry Brogan, an elite assassin, is suddenly targeted and pursued by a mysterious young operative that seemingly can predict his every move.

In the 28th century, Valerian and Laureline are a team of special operatives charged with maintaining order throughout the human territories. Under assignment from the Minister of Defense, the two embark on a mission to the astonishing city of Alpha. A mystery is at the center of Alpha, a dark force which threatens the peaceful existence of the city.