A spy thriller with a nuclear twist! That's what Saif Ali Khan's home production Agent Vinod is about. The film is an action thriller and has Saif playing a slick, stylish and a daredevil spook. Since Saif is also co-producing apart from acting in it, a lot of brainstorming sessions were held between him and director Sriram Raghavan to make it an action thriller with a difference. Interestingly, Saif's girlfriend Kareena Kapoor plays a character with shades of grey. Moreover, she'll be seen doing some deadly stunts.