Wu Jilin (played by Zhang Han) is an optimistic and sunny boy. He works in a courier company and completes the delivery by bicycle every day. Amazing job done beautifully every time. On this day, Unlimited's boss asked him to send an urgent document, but he met Xiao An (played by Zheng Shuang) on the way. Xiao An was performing with a group of extreme sports teenagers, but Wu Zhiji couldn't hold back his car skills, but he offended this uncertain girl Xiao An because of this, and she let other young boys snatch Wu Zhiji's package. Wu Zhiji stopped Xiao An who was about to leave, and followed her to find the whereabouts of the teenagers. Only then did he know that Xiao An was a rich girl who was not very happy, and the two lonely souls gradually moved closer together as they got along
It turns out that the courier Wu Zhiji sent this time was a genetic sample of a super virus-a mysterious parrot, a criminal gang from abroad. The gang was looking for the parrot, Wu Jilin and Xiao An also became the targets of this criminal gang, and the teenagers launched a fierce joint pursuit with the evil forces.