Friends team up to enter protection mode, you are responsible for positive output, and he specializes in setting traps. As a result, his hand speed was too fast and he placed it in the wrong position on the power grid, trapping the old man and preventing him from moving forward. The two of them were in a hurry when they found that the power grid had just stopped the self destructing zombie that was attacking. With a smile, they played the mistake into a "trap to protect the master" routine.