This movie begins with a scientist Prof. Ramdas (Tinnu Anand) doing vigorous experiments to invent a 'Time Machine' at his home laboratory. After tremendous effort eventually he becomes successful. His daughter Hema (Mohini) and her fiancee Krishna Kumar (Nandamuri Balakrishna) accidentally get into the time machine and visit the past (time of Krishnadeva Raya's Empire). At another instance, the couple gets ended up in a fictional 'Future' set up by the 'Time Machine' where in, the world is about to get destroyed through radiation effect after the end of Third World War. The story revolves around one more important aspect, the Krishnadeva Raya's Empire - diamond in a highly secured museum. A high profile thief Raja Verma (Amrish Puri) has a queer hobby of burglary of expensive diamonds from all over the world museums. He makes an attempt to rob the diamond in the present time, which was witnessed by a school kid - Hema's cousin (Tarun Kumar) - on his school excursion to the museum. He...