The story of Jawan of Vellimala revolves around a high-range village called Vellimala , a dam in this village and the people living there. The villagers of Vellimala consider the dam as a sign of their pride. Gopi Krishan (Mammootty), the central character, who took voluntary retirement from military service, reaches Vellimala as a labourer. Varghese is a government employee at the Dam site and Koshi Oommen, another character reaches there for some personal need. These three play the main three male characters in the film. Mamta Mohandas plays the role of a project officer at the Dam site and she also works for the development of the society. The story reveals the incidents happening when these characters and the villagers meet together.