Hritik Roshan's son Hrehaan and Hridhaan are helping their grandfather Rakesh Roshan in deciding the storyline of Krrish 4.
The film Krrish 4 is the next in series - Koi Mil Gya, Krrish and Krrish 3 plan to launch next year.
The two children actively participating along with other script writers with their new ideas on superheroes. They are huge fan of science fiction and action movies so come with latest trend sense on the subject.
As per the Buzz says, Vivek Oberoi (kaal) villain of Krrish 3 will make his comeback in the movie.
