Two time travelers with opposing views are sent back to the present aboard a research ship in the Antarctic to prevent a global biological disaster from occuring

Follows a top military soldier who discovers that a brilliant scientist, who is her former lover, is dangerously meddling with the fabric of time, trying to save both their broken romance and the human race.

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.