Grand Theft Auto IV Walkthrough

The game will prompt you to find another vehicle by ditching the prisoner transport truck in an inconspicuous place. This can be confusing, though, since you actually only need to head to the yellow dot on your HUD, where the truck can be safely abandoned and a sedan picked up. So, simply follow this route to an abandoned warehouse off of Tinderbox Avenue in Alderney, where the truck is left in lieu of the aforementioned sedan. We're almost done.

Follow the new, final route the GPS gives you on your HUD. Remember, we're not really helping this guy out, so the idea is to get him to a secluded area where he can be killed without drawing attention to yourself. Follow the route given -- it'll bring you off road and to a coastal area, so be sure to have good control of the car so you don't go over the edge. When you arrive at the designated area, everyone will get out, and the prisoner will celebrate his release. But when he realizes who it was who sent Niko and Packie to spring him from the joint, he'll think twice. From there, you have to kill him, so do so. Then, the mission successfully concludes.