Young Ones (2014)

Set in the future, when a major drought has turned Earth into a wasteland giant. The dust was thick coated on the barren and lonely planet. Ernest Holm live in this harsh land with the children, Jerome (Kodi Smit-McPhee) and Mary. He defended his farm against the bandits, doing the plumbing. But Mary';s boyfriend FLEM Lever had other thoughts. He wants to take the Ernest for himself and finds ways to get it.