In a Rio de Janeiro after the catastrophe, only the hills were immune to a flood that left the asphalt submerged. While the Navy is rationing provisions and some are sacrificing themselves to avoid starvation, a diver goes to the bottom of the sea and finds a submerged civilization there.
Renato has fallen in love with his neighbor Marta, but their families don't get along. To try to solve the problem, each one takes their own family to a picnic in Paquetá, where everyone will have to interact.
