The History class in school is monotonous and Raju's mischief backfires when the teacher punishes their group with a tough assignment. Working together, the kids comment that studying history would have been fun if they had seen the events themselves. Raju decides to build a Time Machine and they succeed with Cheeky's help. They first travel to the ancient Indian kingdom of Khokumpur where their modern attire and gadgets are fascinating to the people. As their popularity grows, the king gets them sent away. When they travel again in time, they arrive in Ancient Greece, amidst a contest between the Titans. The kids must fight if they are to return home again in their time period. Will Mighty save the day for himself and his friends? And most importantly, will he be able to do it in time?
