Ezhil (Arun Chidambaram) is a brilliant school student. He excels in all subjects and is favorite among teachers. Ezhil grows up with his interest in science. Days pass as Ezhil is now a teenager and an aspiring scientist. His father (Ilavarasu) supports him in his dream, while his mother (Senthi Kumari) does not. Their village often lands in electricity deficits and power cuts. Ezhil aspires to invent a machine to deal with it. Ezhil's crush Veena (Jiya Shankar) and friend Sakkarai (Black Pandi) help him in his research and ideas. Ezhil decides to do it through some waste materials and simple objects such as motors, batteries, etc. He studies the structure of windmills and their works. He then gets an idea about it. When Ezhil constructs a model of the windmill, he faces many obstacles from the villagers on the way, and how he manages to invent it forms the rest of the story.