The play tells the police Shen Hongfei was attacked by gangsters participating in the work of the first eye watching colleagues and was seriously injured, but his hands. Shen Hongfei secretly determined, must become the special police detachment commandos. In the SWAT team training camp, Shen Hongfei accidentally discovered, morning run and produce their own "misunderstanding" girl in the gun. Investigation personnel is direct young Zheng Lingyun, love for many years, because of the appearance of Shen Hongfei, Zheng Zhi felt a deep crisis. Two people in training and competing with each other, and the relationship between the subtle changes in lingyun. After the end of training camp, Duan Weiguo Zhao Xiaohei, demobilized officers armed police snipers, bomb wizard He Miao, Dr. Tao Jing and Shen Hongfei five tactics by selecting, composed of young police anti-terrorism elite group -- the little tigers, they assisted the tigers cracked a major drug trafficking cases, track down sb. by following clues busted a gang of money laundering. Time and time again task, tigers is becoming more and more mature, this group of young people live and die together eventually grow into a terrorist tremble with fear on hearing of the police force.