Bell Bottom is an action-thriller drama based on true events that took place in 1984 where a plane is hijacked in Amritsar by some Islamic group who on meeting their demands wanted to redirect the plane to their desired destination. This was another multiple heinous types of airplane hijacks that India was facing and to meet with another such challenge in 1984 a RAW agent by the name of Bell Bottom (Akshay Kumar) is called in who sees through the plan and thus, begins India's first covert operation. How Bell Bottom saves the passengers and gets the hijackers to book forms the remaining part of this intriguing drama.