Wealthy New York City teenager Balthazar "Balthy" Malone (Jaeden Martell) has a crush on a classmate who organizes gun control protests. To gain her attention, he creates dramatic social media videos pleading for stricter gun laws. When an online troll (Asa Butterfield) begins mocking his videos, Balthy becomes convinced that he is communicating with a potential mass shooter and impulsively decides to travel to Texas to confront him in person. What starts as a misguided hero's journey evolves into a complex encounter between two young men from vastly different worlds, each struggling to find their place in a divided America.