When a wealthy real estate company, backed by a powerful minister decides to build a township in a reserve forest area, it cuts off access to the water body to the elephants living in the area, endangering their lives. An eco-warrior decides to fight for their cause at a time when nobody else would.

Ten-year-old Sembi and her grandmother Veerayi, an apiarist, live peacefully amidst nature in the hilly regions of Kodaikanal. They lead a beautiful life until three influential miscreants shatter all their dreams. After a tragedy the two escape and board a bus, whose Passengers from different walks of life try to help bringing justice to the duo.

A pantry boy falls in love with the touch-up girl of an actress travelling on his train, but an incident turns the train into an unstoppable force posing a threat to the passengers, and the romance.

The story revolves around a mahout and his trained elephant.