João and Cristiane are a pair of swindlers who want to deceive a Colonial war veteran who won 190 million euros in the lottery. João pretends to be the lost son of the winner. But they are not the only ones with the same intentions.

A nobleman from Alentejo, from a very conservative family, intends to reconquer Olivenza, returning the situation to the times of the Treaty of Tordesillas. To this end, he creates two movements, which prepare for the big day. However, these plans do not work, as the daughter of the Mayor of Olivenza falls in love with the son of the Baron of Altamira, and the war will be different...