On a trek to find the world's rarest tree, Dylan and his friends descend into harsh ravines and canyons. As the wilderness closes in on them they come face to face with hard truths about friendship, unrequited love, and the consequences of letting go of the past.
Nina is a mother a little bit crazy, Baptiste a son a little too wise. Angry since a long time they are found for the adventure of their lives. During a trip unlikely, funny and moving, they will catch up the lost time.