Nonie goes for an art exhibition and befriends a girl named Maya. Nonie becomes very fond of Maya and starts hanging around with her. Maya has a habit of shoplifting and Nonie too develops the same habit. Nonie along with her friends of Denobili and Maya goes to a shopping mall. Nonie steals a purse and puts it in Samanthas bag. But the burglar alarm rings and they all get caught. Maya calls up her father and he comes to rescue them all. Everyone thinks that it is Maya who had done shoplifting but get shocked when Nonie confesses the truth that she had stolen the purse.
The story revolves around the lives of the students of 12th grade at the DeNobili High school. Their highs and lows, their dreams and aspirations, their friendships and relationships and their way to deal with life is all what is ‘HIP HIP HURRAY’ about. The story also focuses on various teenage issues like drugs, dating and heartbreaks, falling in love with the teachers, differences with parents, exam blues and the fast moving life wherein each student has to prove his worth to the world. DeNobili High School is a place where all the students are given a chance to explore themselves and all the teachers share a very affable bond with the students. Each and every student of the 12th grade does their best to make their last year at the DeNobili High School most memorable for them as well as for their teachers.