A scientist, Dr. Yatinder Khanna, has dedicated 15 years of his life in building a time machine. Sana expresses a wish to time-travel to Mumbai in the year 2050, but she is killed in an accident before her marriage to Karan. Karan wishes to travel back in time and find Sana. Dr. Yatinder, Karan, and Sana's siblings, Rahul and Thea, travel forward in time and reach Mumbai in 2050. They are fascinated by the futuristic Mumbai, with its flying cars, holograms, robots, 200-story buildings and more.