A Thys

Prior to his death, Mutalib tycoon ordered his son Dullah to search for a legacy that is listed on the secret map. Fearing that his son, who had been studying abroad, knew only the truth, Mutalib asked his friends, Cepot and Udel to help and guide his son, including being told about the secret map. Joko, the deceased's assistant, is trying to seize the map with the help of Mutalib's private secretary, Fatimah. Udel and Tjepot were kidnapped and threatened by Jim. Udel and Tjepot fled to Sukadamai. This run was made funny. Joko successfully snatched the map from the Dullah and went to Sukadamai which was the clue to the inheritance. Thanks to the help of Udel and Tjepot, the Dullah was able to find the treasure. What is the content of that inheritance? Just a piece of paper urging Dullah to work. The insane Dullah who wanted to work hard after getting the message, also fell in love with the local girl, Siti.

Machmood and Ali are best friends. Ali's father, Commander Usman, proposes to Guru to have his daughter Halimah, marry his son. But Halimah is Machmood's girl friend. So to get rid of Machmood, he orders him to eliminate the sea pirates. But unexpectedly, Ali follows him. Together they attack the pirates. Ali dies in the battle, and Machmood captures the pirate. Surprisingly, the pirate is the king's brother, who became a pirate to protest the King’s unjust rule of the kingdom. So the Sultan realises his mistakes and finally Machmood marries Halimah.

Prince Citra wants to replace the dying King Basilam. He threatens the queen that he will kill the baby in her womb if it turns out to be a boy. To save her son's life, the queen switches him with a baby girl, and she names her Princess Amidra. Taruk brings her son to Talisajan Island on the queen's order. Amir, Taruk's brother, nurtures the baby and he is named Hasan. After Hasan grows up, Amir tells him his true identity. So Hasan sets sail to the palace. Then, assisted by Taruk, Hasan gains the support of the people. Citra is dethroned, and Hasan takes his rightful place as the king. He marries Amidra, who turns out to be the daughter of a minister.

In Padang, childhood friends Samsoelbahri and Siti Noerbaja fall in love and kiss on the veranda, but are soon parted by their parents. Samsoelbahri goes to Batavia to study, while Noerbaja must marry the contemptuous Datuk Meringgih so that he will forgive her father's debts. Writing to Samsoelbahri, Noerbaja tells him that they can never be together as she has married. However, when she realises Merringih's violent nature she runs away to Batavia to join Samsoelbahri. They fall in love again, but must part after Noerbaja hears of her father's death. She hurries back to Padang, where Meringgih's men kill her with poisoned food. Receiving news of her death by letter, Samsu seemingly commits suicide.

Asmara is already in love with Sanusi. But her father, Rasyid, accepts Sumantri’s proposal to marry Asmara with his son, Harun. Enraged by this match, Asmara says that she wants to be a mermaid and she runs away with Sanusi.