 The film stars Hrithik Roshan, Vivek Oberoi, Priyanka Chopra and Kangana Ranaut in the lead roles.The story follows the life of Rohit Mehra, a scientist, and Krishna Mehra, a.k.a.Krrish, his superhero son, who face an elaborate conspiracy orchestrated by the evil genius Kaal and his female henchman Kaya.