The film is to be written by Hussain Zaidi, a prominent crime writer whose scrupulously researched books have earlier been the basis of Anurag Kashyap's Black Friday and Sanjay Gupta's Shootout At Wadala.
This wouldn't be the first film that Saif would be doing on global terrorism. He has earlier done Rensil D'Silva's Kurbaan, in which he played a terrorist. In Kabir's film that Sajid Nadiadwala will produce, Saif crosses over to the other side.
Said a source: "Saif plays a counter-terrorist deputed to tackle a post 26/11 scenario. It's a kind of extension to Salman Khan's RAW agent's role in Kabir Khan's Ek Tha Tiger. But the politics of this film would be far more topical."
Saif, according to sources, would be required to undertake remarkable research to get his data on counter-insurgency right.
"It's a different world for Saif and producer Sajid Nadiadwala. Sajid has only done mass entertainers so far."