Born in poverty, Alibaba is honest and kind-hearted. He accidentally discovered the huge treasure house of forty robbers. When Alibaba's brother Cosim learned the secret of the treasure house, he led his donkey to look for treasure. Eventually, the robbers who came back found that Cosim had turned Cosim into a little mouse.

However, the robbers decided to kill Alibaba who knew the secret of the treasure house. The clever Alibaba tactfully dealt with the robbers. With the help of the beautiful Malkina, Alibaba successfully defeated the robbers, rescued his repentant brother Cosim, and distributed the treasures in the treasure house to the poor.