Professor Bhardwaj had invented a formula, by which any powerful country in the world could come terms of peace. The said formula was written in code words, which he or his daughter Reshma could only de-code.
There were two different parties on the trail of the said formula. One party was led by Mr. Wong, while the other was led by Mrs. Vasco. Mr. Wong had kidnapped the wife of Professor and by torturing her he was about to get the formula, while the opposite gang Vasco scored over Wong in stealing the formula.
To handle the case they called over C.I.D. 909, who had his partner by the name Rosie.
Vasco's delight of grabbing the formula did not last longer, when to his great dismay he found that the said formula was written in code-words. To secure the said formula de-coded Vasco tried to kidnap Reshma through Cabret Dancer Sofia. 909 posing as a gangster foiled their attempt and rescued Reshma.
On the other hand, Wong was threatening to kill Professor's wife, in case of not getting the formula.
909 played a trick with the gang of Vasco. He knew they wanted Reshma for getting the formula de-coded, So 909 offered Reshma to Vasco against huge payment in Cash. The deal was carried through, and when Reshma was handed over to the Gang, 909 smartly followed their track and succeeded in spotting their Headquarters. The gang was completely smashed. 909 succeeded in getting back both the formula and Reshma, but Vasco had escaped!
Professor was happy on gretting back the formula.
Since Wong was threatening to kill the wife of Professor, he had no other alternative except to agree to the terms of Wong. Rosie was too smart to keep her watch on all the developments.
How 909 rescues Professor's wife and gets back the formula is to be seen on the screen. To reveal all this you will be swept away into the most exciting, thrilling and romantic scenes ever in B.D. Kapoor's "C.I.D 909".