Abhiyan is a Superintendent of Police in the Kanyakumari district and is known as “Vettaiyan,” a renowned encounter specialist recognized for taking down criminals with the help of his team and “Battery” Patrick. Patrick, a former thief turned police informer, is a tech genius who loves Horlicks.
Athiyan receives a complaint from Saranya, a middle-school teacher from Pechipaarai, regarding marijuana being stored in classrooms. This situation has led to drug abuse among students and disrupted classes. Acting on this tip, Athiyan and his team arrest Kumaresan, the man responsible for drug production. They subsequently kill him in an encounter, which earns public approval but also draws the scrutiny of the Human Rights Commission.
Justice Sathyadev attends the hearing for the encounter case to observe the proceedings, and the court ultimately rules the encounter as justified. Meanwhile, Saranya grows closer to Athiyan’s family but is soon transferred to Chennai.
