Sanjana and her parents are on a long train ride from Bhubaneswar to Bikaner. She has just got a mail about her friend, Puhor, who was literally creating a storm in a teacup in Assam. His idea of generating energy from used tea becomes the hot topic of discussion on the train. Is there a way to make clean energy from used tea leaves? Settle down with some tea and a plate of hot samosas to find out why it takes an entire eco-system to make any idea work.