Balli Shivaji (Dhanush) works as a pantry worker in the Chennai-Delhi Express. One fine day, he comes across a girl named Saroja(Keerthi Suresh) during the journey and falls flat for her.Twist in the tale arises when the train they are travelling in suddenly becomes unstoppable due to certain weird circumstances. What exactly happened to the train? Why can’t it be stopped? How will everyone survive this scare? and what happened to Shivaji’s love story? That forms the rest of the story.