It's the summer of 1976, Europe is experiencing heatwaves and droughts.
In a modest agricultural family, Gus, a 13-year-old boy, notices that the weather doesn't only affect animals and harvests, but also the behaviour of the adults around him. His mother, to whom he is very much attached, leaves the family home for a woman. Gus is rebelling faced with the farm work he has to do, to take over his father's place who has locked himself in his room. Finally, it is also the time of first emotions with their inevitable clumsiness for Gus.
This hot summer will be one for his initiatory learning and will serve as a backdrop for the erosion of the young boy's world: that of the traditional farmer affected by drought, of his ruined father, of his family with the separation of his parents.
In a few months, he will have definitely left the innocence of childhood behind him.