A goon, Rajaraman, enrols himself in a medical college to fulfil his father's dream. He defies the college rules and creates problems for Dr Vishwanathan.

Babu, a tea vendor, loves Uma, a rich girl. She too loves him for his sincerity. When she receives a proposal from a doctor, she accepts for the sake of a secure future. Babu sues her for cheating.

Youth follows Praveen, a 15-year-old boy who enters adolescence determined to find true love before school ends. As he goes through multiple relationships and heartbreaks, he slowly begins to understand what love truly means. Along the way, the experiences shape his growth, maturity, and outlook on life.