If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
The passengers from the airport need to get to their airplane really fast and safe and the only way you can help them achieve that is by driving them with your bus. You have to be very skilled when it comes to driving and parking in order to succeed your mission. Make sure you do not crash along the way and keep your eyes on the timer and try to complete each level before the time runs out. Find your way through the maze created by aircrafts and vehicles and avoid hitting the passengers. Have a lot of fun playing this awesome game!