Gaia

An injured forest ranger on a routine mission is saved by two off-the-grid survivalists. What is initially a welcome rescue grows more suspicious as the son and his renegade father reveal a cultish devotion to the forest.
In the depths of an ancient forest, something has been growing. Something older than humanity itself, and perhaps greater too. When a park ranger discovers a man and his son living wild, she stumbles onto a secret that is about to change the world.