Patriot is a gripping espionage thriller that marks the long-awaited onscreen reunion of superstars Mammootty and Mohanlal. The story follows Dr. Daniel James, a retired analyst who is falsely accused of espionage, forcing him back into a dangerous world. He crosses paths with Colonel Rahim Naik, an intelligence officer tasked with the investigation. 

The plot centers on Periscope, a lethal spyware originally designed for national security that is now weaponized by the powerful J.P. Sundaram and his son Shakthi. As Daniel and Rahim navigate a landscape of deceit where technology controls everything, they must determine who to trust.