Ali Taha (Emraan Hashmi) and Sanjana (Soha Ali Khan) are two people with a history, on a flight back to Mumbai.They land in Mumbai to witness the devastating Mumbai monsoon on 26th July 2005.While they struggle to make it through the flooded streets of Mumbai, the past catches up with them – how they met and how it ended.As the rain’s fury beats down on the city, Ali and Sanjana discover each other all over again.