 An Indian-based Scientist Sanjay Mehra devises a computer which is capable of contacting the aliens. His happiness is cut short when the scientists at a space research center scoff at him and refuse to believe his claims. While returning home with his pregnant wife he glimpses an alien spaceship and in the resulting confusion he cannot control his car, leading to a crash. His wife survives but their child s brain is damaged. Years later, their son Rohit Mehra has grown up but has thinking capacity of a child. He befriends the town Mayor s daughter Nisha which angers Nisha s suitor Raj, a spoiled brat. One day, Rohit and Nisha find Rohit s father s computer in the shed and follow the instructions provided. That very evening their town is paid a visit by an alien spaceship which lands some place nearby and takes off shortly later. But when the police inspect the footprints they discover that one of the aliens has been left behind. Then Rohit and Nisha find the alien, name him Jadoo - and watch as their lives slide into virtual chaos.