In the 28th century, Valerian and Laureline are special operatives charged with keeping order throughout the human territories. On assignment from the Minister of Defense, the two undertake a mission to Alpha, an ever-expanding metropolis where species from across the universe have converged over centuries to share knowledge, intelligence, and cultures. At the center of Alpha is a mysterious dark force which threatens the peaceful existence of the City of a Thousand Planets, and Valerian and Laureline must race to identify the menace and safeguard not just Alpha, but the future of the universe.

The film is set in France in the 1990s, the French were defeated by the Germans early in World War II, an armistice was signed in 1940 which effectively split France into a German occupied part in the North and a semi-independent part in the south which became known as Vichy France. In reality the Vichy government was a puppet regime controlled by the Germans. Part of the agreement was that the Vichy Government would assist with the 'cleansing' of Jews from France. The Vichy government formed a police force called the Milice, who worked with the Germans...

The wife of an abusive criminal finds solace in the arms of a kind regular guest in her husband's restaurant.