Amma Nanna O Tamila Ammayi is a film based on a man who is kick-boxer and his aim is to become a champion. He lives with his caring mother, but his father leaves them to follow his dreams. When he loses his mother, he moves to his father's house, upon his mother's insistence in her last days. The story takes a turn when he learns that his father has remarried and has a daughter with his second wife. The boy manages to win the love of their family.