In Brizan, a quiet seaside resort in the french Landes, everything changes with the arrival of the first wave which, like a tsunami, will cause the disappearance of surfers and disrupt the intimate life of the inhabitants.

In this supernatural thriller, an ominous cloud meets a supersized wave during a surfing competition, engulfing the participants in one fell swoop. When the cloud dissipates and the water settles, the surfers are nowhere to be seen. Five hours later, they reappear safe and sound - but with no recollection of their disappearance. One by one, the returning surfers discover they each possess inexplicable powers.