In Egypt forties and before the 14th of July revolution in 1952, a poor family lives in a prince's palace where the father works as a gardener. The family has two children Ali and Hassan. Ali grows up liking the prince's daughter who loves him too. Now grown ups, they realize how impossible this love story is. Joining the army, Ali fights in Palestine while the brother joins the police and is part of the King's guards. Ali gets back from Palestine and joins the secret military movement that will soon rule Egypt, The Free Officers. The revolution starts and the Free Officers are now in charge, putting Ali against his brother as a guard for the king and also against his lover, the prince's daughter as the revolution will confiscate all her family's wealth.
A man suffers from a heart attack so he sends his daughter to get medicine for him. After providing the medicine for the girl, the pharmacist discovers that he has unknowingly mixed a poisonous elixir. Reporting what happened to the police, the chief officer of Cairo starts an intriguing, full-fledged campaign to save the man before he takes the lethal medicine.
