Wealthy Om Jaiswal has been discharged from a mental asylum after 12 years, lives under the care of Meena Tai, and loves his childhood sweetheart, Jyotika Jhalani. His brother, Abhimanyu, schemes to get him institutionalized but before that could happen both brothers are abducted and held in a locked mall. Together with them are Jyotika, as well as their childhood friends: Jaideep, the son of a politician, Yeshwant Mahajan - who is now a gangster, and uses his goon-power to force non-Maharashtrians to return back to their respective states. Bespectacled and overweight as a teen, Imran Baig, is now a popular Bollywood actor. And Gunita Sodhi - who always had a crush on Om - is now a beauty queen. Neither of them know who abducted them but blame each other - little knowing that soon a mysterious person, wearing a Santa Claus outfit, will soon not only compel them to play a deadly game but will also attempt to resurrect a traumatic and life-changing incident that occurred 12 years ago.

Spencer and his little sister, Katherine, are flying to Pennsylvania for Christmas with their dad. While changing planes, a blizzard moves in and cancels all flights out of Hoover Airport: they must stay in a basement room with the other unaccompanied minors. Spencer and four others - a chubby boy, a non-stop-talker, a surly girl, and a rich kid - go AWOL and get in trouble with Mr. Porter, the Christmas-hating airport supervisor. The five misfits spend the night evading and enduring Porter's punishments, discovering all sorts of things in back rooms, making sure Katherine gets her visit from Santa, and finding among themselves a new kind of family.