Ouaga Saga tells the story of ten young friends fighting poverty to realise their dreams in one of Ouagadougou's poorest districts. Each one has an ambition - to own a music shop, to be a professional footballer - but they are all poor and realising their dreams seems almost impossible. But when the boys see a wealthy young woman go into an expensive dress shop and leave her motor-scooter unlocked, they can't resist the chance to make some quick money. They steal the bike and sell it, sharing out half the money and stashing the rest at the compound where they live with Bourémah, their older "brother".

Soon, one of their neighbours notices that the atmosphere in the boys' compound has changed and starts to eavesdrop on them. The boys find him and beat him up so severely that he calls the police. Bourémah realises that the police will find the rest of the money if they search the house, so he puts it in a bag and flees. The boys don't realise he's doing it to help them, and think that he's stolen the cash.

Bourémah leaves for another town and lies low in a hotel. Eventually he only has a fraction of the money left so he decides to play the lottery. He wins the CFA500m (£500,000) jackpot and comes back to Ouaga to help each of his friends fulfil their dream.