The movie follows the story of Charlie (Shah Rukh Khan), a down-on-his-luck man who was once a successful dancer. Charlie's life takes a turn for the worse after his father's death, and he becomes a bit of a loner. However, his life changes when he meets four friends - Roop (Deepika Padukone), Pooja (Alia Bhatt), Manas (Katrina Kaif), and Abrar (Abhishek Bachchan) - who convince him to participate in the "Happy New Year" dance competition.