In a future where technology is highly developed, human life is highly integrated with giant mechas. Ordinary teenager Mao Dou accidentally breaks into the Mecha Academy and gets acquainted with the talented engineer Tang Feng, the stern captain An Jin and the mysterious hacker Zhao Huaihuai. Behind the seemingly relaxed slapstick, there are magnificent earth crises, family mysteries and grudge showdowns. Faced with the ulterior motives of Dr. You and the invasion of mechas from hostile forces, the team members grew up through constant hilarious encounters, passionate battles, and true friendship. The loser boy counterattacked all the way, and finally revealed the battle between humanity and reason behind the mecha war, completing self-transformation and the redemption of mankind.