It is a narrative of a series of events that transform the whole life of an ordinary man as well as all the people around him. Mahaan features real-life father-son duo Vikram and Dhruv Vikram together for the very first time, along with Bobby Simha and Simran in pivotal roles. It is the story of a man whose family leaves him when he strays from the path of ideological living in his search for personal freedom. However, as he realizes his ambitions, he also misses the presence of his son in his life. Having fulfilled his dream of becoming a billionaire, does life give him a second chance to be a father? This story is about how his life goes through an unexpected series of events in this thrilling, action packed journey.