在"和平"与"发展"成为当今时代主题之际，依然有很多不法之徒为非作歹，给人们的安居乐业带来了极大的威胁。为了打击这些深藏不露、诡计多端的邪恶势力和组织，国家安全部门招收了一批十一至十四岁、独具个性的少年，成立了少年特警训练营，每年在寒暑假期间进行特警训练。在众多少年特警当中，酷仔、胖哥、铃铃、猴儿和子弹头五个少年机智勇敢、不畏强敌，脱颖而出，组成了"少年英雄联盟"。他们齐心协力、勇往直前，为保卫社会环境和谐安定做出了贡献，极大地彰显了正能量！所以当警方获得重案要案的线索时，经常交给他们前去侦办。（When the "peace" and "development" have become the theme of the times, there are still many criminals committing primes and bringing great threat to peaceful life of human beings. In order to combat these hidden, scheming evil forces and organizations, the state security departments have recruited a group of 11 to 14 years old teenagers with unique personality to set up a special police training camp and carry out the special police training each year during the summer and winter holiday. Among many juvenile special police, Cool boy, Fat brother, Lingling, Monkey and Bullet five brave juvenile defying enemies and standing out to form "League of Young Legends". They make concerted efforts, move forward and make great contribution to safeguard the harmony and stability of the social environment and fully demonstrate the positive energy! So when the police get serious cases of clues, they often give them to conduct the investigation further.）