In search of brotherly connection, 12-year-old Beto skips his first day of school to follow Ramiro, the aloof older brother he admires. Their carefree outing on a scorching late-summer day in Mexico City is cut short when they discover their father cheating on their mother. As the secret strains the family’s fragile harmony, a storm, both emotional and literal, forces Beto to choose between keeping quiet like his brother and confronting a painful truth.