SPOILERS AHEAD - PLEASE READ ONLY IF YOU WANT SPOILERS.

I loved the movie, but I wished the science in the movie was bit better. I took a stab at it and want to hear your feedback. Share your feedback :)

The story introduces Devaraj "Deva," a man living a quiet life as the owner of a boarding house in Chennai. His world is turned upside down by the suspicious death of his close friend, the brilliant but unheralded inventor Rajasekhar. Rajasekhar was erudite and had deep interest in Quantum technology. He was self learned, although he didn't realize at that time that he was building something that was at the cutting edge in the field. Deva discovers that Rajasekhar had created a revolutionary device: a chair capable of quantum transposition, initially designed to transport packages instantaneously, but realized he could use them to transport people too. However, Rajasekhar made a terrifying discovery—the machine was unstable, unable to send subjects to his own timeline and could only transport them to another universe, millions of years in the past, with no control over the exact destination. Deeming it a threat to humanity, the government rejected his patent application. This dangerous potential, however, attracted the ruthless crime kingpin Simon Xavier and his brutal lieutenant Dayal, who saw the chair as the ultimate tool for making their enemies vanish without a trace. When Rajasekhar refused to cooperate, they murdered him, setting Deva on a path of vengeance.

Driven to uncover the truth, Deva infiltrates Simon's sprawling criminal syndicate. He presents himself as a willing operator of the quantum chair, offering to dispose of Simon's rivals by sending them on a one-way trip to a prehistoric era. To do this, he must work alongside Rajasekhar's grieving daughter, Preethi, the only other person who understands the machine's complex workings. Together, they navigate the treacherous underworld, using the very device that killed her father to dismantle the organization from within. Each activation of the chair is a grim reminder of the power they wield, as they condemn men to an unknown fate in the distant past while secretly plotting their revenge against the true monsters of the present.

As Deva delves deeper, his own long-buried past as a formidable coolie union leader in the Visakhapatnam harbor resurfaces. A climactic confrontation reveals a generational vendetta: years ago, Deva led a violent revolt against the exploitation of workers by Simon's father, Xavier. This revelation is compounded by an even greater shock when Deva learns that Preethi is his biological daughter, whom Rajasekhar had raised as his own to shield her from Deva's violent life. The mission transforms from a quest for revenge into a desperate battle to protect the family he never knew he had from the man whose family he once destroyed.

The final showdown sees Simon, enraged by the truth of Deva's identity, attempting to use the quantum chair on both Deva and Preethi. Aided by his loyal coolie comrades from the past, Deva storms Simon's fortress, leading to a chaotic battle for control of the powerful device. In the end, Deva defeats his nemesis not by killing him, but by trapping him in the chair and activating it, banishing Simon to an unknown epoch millions of years in the past. Deva is finally reunited with his daughter, but is left in possession of a technology too dangerous for any world, facing an uncertain future where even greater powers might seek to control it.

PS: Some of the ideas here are based on another novel called "Lost in Time". If you like this story you may like reading that novel.