Rahul Malhotra (Aamir Khan) is the caretaker of a garment company that has a pending order of one lakh shirts to Mr Bijlani. Rahul is also the guardian of his deceased sister's mischievous kids: Sunny, Munni, and Vicky. He finds it hard to control the kids, as he is new to this. When the kids cause trouble, Rahul punishes them by locking them in their room. However, the children escape and head for a carnival in town.