What Happens to Cal in the Euphoria Season 1 Finale? Cal proves once again that he's about as far from "father of the year" as it gets. He berates his son Nate, even after Nate has almost single-handedly won a football game, and when they begin to fight, he's shocked when Nate begins hurting himself. Cal also warns Maddy away from Nate, contributing to their breakup. Image Source: HBO