Alex (C. Arunpandian) and Sivagami (Raadhika Sarathkumar) are honest police officers who are charged to catch the terrorist Jupiter (Naga Kannan). While Murugan is a poor car mechanic living with his mother and beloved sister Meenakshi. Jupiter kills Alex and his family. Soon, Alex is resurrected as a cyborg by scientists. In the meantime, Meenakshi is killed by Murugan's brother Uday (Uday Prakash) and his mother died from heart attack. Alex begins by killing Jupiter's henchmen and partners one by one.