Chandni (Rehana) and her dad (Iftekhar) belong to a well-off family. Her dad feels that Chandni has come of age and must get married. He selects a groom for her and asks her to marry him. She refuses and runs away from home. She meets up with Fooman and Dhaboo and gets into a series of adventures with them, including eluding the police. One of their adventures lands them abroad a ship captained by Prem (Prem Nath), who is transporting a Princess Shehzadi (Purnima) to her native land. The Shehzadi likes Prem and would like him to marry her, but Prem refuses, and as soon as they land, Prem is arrested by the King, imprisoned and tortured. Fooman, Dhaboo, and Chandni plan to help Prem to escape, and end up jeopardizing their own lives.