The mission starts with a long cutscene explaining the situation of Huang Lee. On the end of the cutscene the car with Huang Lee in it drives into the Humboldt River. First you need to smash the window by tapping on it with the stylus. Once you've done that, you need to swim to shore. Once you've reached the shore, you need to enter the car. Once you've entered, you will see that you need to start the car using the screwdriver. You need to slide the screwdriver to the ignition lock and spin it around in both directions. If you've started the car, you need to drive to Uncle Kenny's restaurant and another cutscene will play. After this cutscene, you need to go to the safehouse. Once there, there will be explained to you how safehouses work and then the mission is completed.