The movie "Gunday" tells the story of two childhood friends, Vijay (played by Arjun Rampal) and Ishaan (played by Varun Dhawan), who grow up together in a small town in India. As they navigate the complexities of adulthood, their friendship is put to the test when they become involved in the world of crime and politics. The film's narrative is a thrilling ride, filled with action, suspense, and drama, as the two friends find themselves on opposite sides of the law.