The story revolves around two sets of half-brothers from the complex family of Periya Aambala, who married twice and had children from both wives. Saravanan and his siblings belong to the first wife, while Cheran and his siblings are from the second. Despite growing up in different households, the two sets of brothers’ lives intertwine as they are drawn into family dynamics, secrets, and rivalries.

As they face conflicts, misunderstandings, and unexpected alliances, the brothers are forced to confront their shared family ties. The tension between Saravanan and Cheran leads to both comedic and dramatic moments, as they navigate sibling rivalry, family drama, and the journey toward understanding each other. Through challenges and adventures, they gradually discover the importance of unity and family, despite their differences.