Walkthrough for Prologue of Grand Theft Auto V.
1. Aim your gun to hostages and guide them to the room.
2. Use the phone to trigger the explosive charge.
3. Go to vault room and collect the cash.
4. Switch to Trever and kill the guard.
5. Take cover and wait for explosion.
6. Kill cops and get into the car.
7. Drive to the helicopter pick up point.
Extra Content: If you go under the bridge on your right, you can see a frozen Alien.
8. Keep shooting at cops while taking cover.