Under orders from their commander (Clive Owen), they are sent to Alpha, which is an intergalactic city that brings together thousands of different alien species from the farthest reaches of the galaxy.
While Alpha is primarily a peaceful place, where a harmony is found in cooperation, there are operations going on behind the scenes that could undermine everything for which it stands.
Based on the French Valerian And Laureline comics by writer Pierre Christin and artist Jean-Claude Mézières, the Luc Besson film brings us into a fresh sci-fi world where we follow the adventures of Valerian (Dane DeHaan) and Laureline (Cara Delevingne), who operate as spatio-temporal agents protecting the universe from all kinds of threats.