In the desolate hinterlands of Tamil Nadu, a stranded urbanite enlists the help of three locals to find his missing family believed to have been abduc…
A packed van going to the town of Navamalai is compelled to take a detour through Kattiyal village. However, the van goes missing in the forest, leaving Shakthivel and Karunagam to mourn the loss of their children.
When Gautham manages to find his way back with Shakthivel, Karunagam and Peter, he discovers that his car and family are nowhere to be found, and he also notices signs of kidnapping. This incident eventually leads the group to the dreaded Kattiyal.
As the mercenaries trek through the forest, Farhan realises that Jagan is hiding Prakash's true intentions. The four men head deeper into Kattiyal when an attack by mutant creatures prompts them to retreat into a cave.
When Gautham and his companions discover that they are inside Kattiyal's old mining caves, they decide to go even further, and end up entering Sairaj's new lair.
After Gautham, Karunagam, and Sakthi narrowly escape Vettaiyan, a hideous giant mutant, they stumble upon gruesome offerings to the Mother Goddess, which leaves Sakthi upset.
Despite several losses, the mercenaries and Gautham's friends join forces and devise a plan to escape. But Vettaiyan, a giant mutant monster, and his army stand in their way.
