In the fictional "Squad Six" of the International Security Agency, six agents with different styles are ordered to track down a series of global mysteries. The story has ups and downs, is simple and compact, and is full of wit and humor. The first volume opens with the mysterious theft of nuclear weapons. The six special agents join forces to solve the problem for the first time, and each grows up. The second volume focuses on a transnational assassination mystery. The team members are trapped both internally and externally, and their emotions and trust are deeply displayed. The third volume reveals the ultimate conspiracy of the world's largest espionage organization. Special Six uses unity and wisdom to achieve victory and self-transformation. The three volumes of the book are interlocking, both independent and supporting each other, with a fast pace and constant climax, and finally ends in a humorous and profound way.