Periya Aambalai (Joe Malloori) plays an elderly man who has four sons, Kasi (Saravanan), Pazhanisamy (Vignesh), Dharmaraj (Snehan) and a daughter with his deceased first wife. Muthupandi (Cheran), Chella, Selvam (Soundararaja) and Mahesh are his sons with his second wife. Kasi has two children, Sakthivel (Gautham Karthik) and Venpa. Muthupandi is very affectionate towards his half brother Kasi and also employs his nephew Sakthivel in his lorry business. (Daniel Balaji) who plays Karuppan is an evil money lender who loses his business due the brothers working hard, helping one another and waits for an opportunity to destroy them. When Venba gets pregnant after marriage the Kasi decides to have the childbirth in their home but since its in bad shape decides to build a new house. Muthupandi offers his land to Kasi who in return promises to build a house for the entire family of thirty members. The construction begins and Karuppan starts plotting against them and creates rifts between the half brothers.