Gremio Football Porto Alegrense (Inacreditável: A Batalha Dos Aflitos (2006)) and Sport Club Internacional (Inter)are two rival football teams in the state of Rio Grande do Sul. They form the Grenal, classic contest between the teams. The film portrays two families fanatical rivals for each of these teams. But the son of Juca (Chibé), fanatic fan of Inter, and the daughter of Hugo (Paulo Santana), Grêmio's diehard fan start a dating and circumstances become critical, taking into account the end of the soccer championship of Rio Grande do Sul.