After some time and effort, Gu Fan, Su Hui, and David finally managed to hire a suitable truck. According to David's calculations, this truck could fit the prototype of the space-time door and other equipment.
They couldn't pay attention to driver's license matters at this point. Su Hui jumped straight onto the truck, started it up, and hit the road, heading directly for their destination.
Luckily, the underground research base was built in a remote and barren area. On their journey, Su Hui didn't encounter any other vehicles or traffic police, making for a smooth ride.
After a bumpy ride, they finally returned to the farm. Gu Fan and Su Hui got out of the truck; they acted first, telling David to hide. If he heard anything suspicious, he was to run immediately.