Mecha Frontline

Four college students who are about to graduate, Xiaochun, Dalong, Irene, and Harley, meet to go hiking and camping in the countryside. The four of them were enjoying the fun of this outing, but a huge explosion in the distance broke their rare moment of youth. When the four returned to the town, they realized that the whole world had become different. After narrowly escaping the pursuit of alien mechas again and again, they arrived at the home of their former university professor. Professor Du told them the ins and outs of the alien invasion, and the four decided to fight with Professor Du against the brutal mecha. At the same time, another surviving human organization, led by a governor, launched a fierce struggle with Xiao Chun and other four people to seize resources. Faced with the killing of each other by humans and the large-scale invasion of alien mechas, the four had to grow up quickly and fight to defend the dignity of mankind. But they don't realize that the war will never end.