Playing as either Michael or Trevor, Steve Haines calls and tells him (Michael or Trevor) to go and meet with the other protagonist - either Michael or Trevor depending on which character the mission is being played as.
At the warehouse Steve and Dave are there with Mr K. Steve wants Michael to assassinate Tahir Javan, who Steve and Dave say is linked to terrorism. Tahir Javan has had an audio-visual system set up by Mr K and is their sole source of info. Haines tells Michael to go with Dave to track down and locate Tahir.
Michael and Dave go to a house in Los Santos which proves to be a false lead. Steve orders Trevor to torture Mr K to find out Tahir’s location.
Trevor tortures Mr K in one of four ways; waterboarding, beating with a wrench, electric shocks from a car battery or tooth extraction. If Trevor goes too far there is always a shot of adrenaline to pull him back, this can be done up to four times.
Mr K reveals that he is is at a beach house, when Michael and Dave arrive there is a party going on and no one there can be definitely identified as Tahir. On Steves instructions Trevor tortures Mr K further to find out that Tahir is of average height, has a beard and chain smokes left handed. Michael identifies the man and assassinates him.
Haines, back at the warehouse, decides Mr K isn’t needed and orders Trevor to kill him when he leaves. Trevor however takes Mr K out of the warehouse and takes him to the airport.