After the passing away of his wife, Pooja, Delhi-based Vikram Madan, enrolls his daughter, Priya, in a boarding school in Amritsar, and re-locates to work as a Mechanic at Chandigarh Airport. His daughter informs him that she is on her way to Amritsar on a hostel-trip on Indian Airlines Flight IC147. Shortly thereafter, Vikram will be informed that the flight has been hijacked to Dubai by Islamic terrorists, who want the Indian government to release one of their comrades, Rashid Omar, or else they will start killing the passengers and crew one by one at half-hour intervals.

Atithi Tum Kab Jaoge? is the story of Puneet and Munmun, a happily married couple living in Mumbai whose lives take an interesting turn when a distant relative, Chachaji turns up unannounced at their doorstep from a far off village. The guest overstays his welcome so much so that the exasperated couple come up with various ploys to hasten his departure to hilarious results.