Anbu (Harish Kalyan) is a brilliant student in a village school, in Kanyakumari area. His mother teaches in the same school and his father Veerasami (Ghajini) is a CRPF soldier in Assam. His classmate, Sundari (Amala Paul), who is elder to him by three years falls for him. One day, his father gets injured in a militant attack and takes voluntary retirement and comes back to the village. The father dotes on his family, especially his son, but tragedy strikes as his wife dies from a snake bite.