A middle-aged man from Mumbai sets out on a journey to Tamil Nadu to scatter his grandfather's ashes in Rameshwaram's holy waters. During the train ride from Mumbai to Chennai, he encounters the cheerful daughter of a mafia kingpin and falls for her. However, his life is put in danger when he helps four heavily armed goons board the train, and he must fend for himself after his phone is destroyed.

Chennai Express
A grandfather's ashes scattering trip turns into a thrilling adventure as a man helps a don's daughter and her cousins on the Chennai Express, leading to a series of unexpected and chaotic events.