2029. Paris. Reading is forbidden by law. The internet has been censured. On the main floor, a man is arrested. In the basement, life continues: learning books. Freedom persists.

Beatrice celebrates with her family the release of her book: she tells about the accident of her husband Frederic. He became blind and without filter - always so funny and seductive, he is totally unpredictable. But this book, hymn-to-life, will turn into a joyful fist because if Beatrice changed the names, each of his friends seeks to find his character. The book awakens secret jealousies, while the group of friends and family pitch.

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.