Melvin has shaved his beard to join Project Zorro and save Regina. However, Regina has been fitted with a tracking device that the group needs to remove. They attempt to use various methods to remove the device but are initially unsuccessful. They eventually use liquid nitrogen to freeze the device and then break it off.
The group then discovers that the tracking device is still active and decides to create a diversion by duplicating the signal and transferring it to a toy car. The villains fall for the trap and start following the toy car. The group uses this opportunity to create a plan to escape and distract the villains.
As they try to come up with a plan, they notice that the villains are tracking them and decide to create another diversion. They tie the villains' shoes together to slow them down and make their escape. The group also discovers that one of the villains, Foo, might not be as evil as they thought, as he seems to care about the group's well-being.
In the end, the group uses a slingshot and watermelon to distract the villains and make their final escape.
Here are the key facts extracted from the text:
1. Melvin shaved his beard to join Project Zorro and save Regina.
2. Regina was given a tracking device that would shock her if she tried to remove it.
3. The device had a countdown timer and displayed numbers.
4. The characters attempted to remove the device using a jiggler and liquid nitrogen.
5. They eventually transferred the tracking signal to a toy car called the Reggie's Radical Racer.
6. The car was driven to a remote location to throw off the trackers.
7. The characters used a phone to monitor the trackers' movements.
8. The trackers were fooled into following the toy car.
9. The toy car was eventually driven off a cliff and into a body of water.
10. The tracking signal was lost, but the characters were concerned that the trackers might still be able to find them.
11. Daniel and Chad tied the trackers' shoes together to slow them down.
12. The characters used a slingshot to defend themselves against the trackers.
13. The slingshot was used to launch watermelon at the trackers.
14. The characters were trying to meet up with Chen and Daniel.
15. They were unable to return to the safe house due to the tracking device.