Ranbeer Talwar (Saif Ali Khan), one of the country's top industrialists, is a loner. Not of his free will but because he's lost everyone he ever loved. Life turns around 180 degrees when he faces the most uncomfortable situation of his life: In a very unusual court verdict, he is tasked with looking after four orphan children.<br /><br />Unfortunately, the orphans hate him and are vengeful - Ranbeer can't get along with them for some reason. The children don't want to live with a man that they hate and they make it very clear. Their life together is very unhappy until one day they pray to their god for help, and he helps them. He sends his most mischievous, childlike, lovable angel to the rescue, with a mission to bring Ranbeer and the kids together - Geeta (Rani Mukerji) comes cycling down a rainbow and bursts into Ranbeer's house as the self-proclaimed new nanny!<br /><br />And then the rollercoaster ride of fun, emotion, magic and love begins: An angel who doesn't know what love is; A man who always lost love; Four orphans who need love. All come together to bring you a film with excitement, masti and tears.