In a near future, Nature has decided to take its right back from mankind. Epidemics and natural catastrophes have decimated large parts of the population. Vegetation has swallowed cities and animals have become unpredictable. Wildlife now represents a threat to the survivors entrenched in the few cities which they have fortified. In one of these cities Daphné, Dylan and Sandor – in their early twenties – decide to secretly escape and cross the Wall separating them from Nature. A trip to the unknown, with chances of no return.