In the game, the player will play as Jiajun and team up with Xiaomei to complete the missions from Captain Zhang. There are total eight chapters in the game. Chapter 1 to 4 take place in the mall and the streets, our heroes need to save the hostages and defeat the robbers of the Y-Reagent. Chapter 5 to 8 take place in the nest of the Black Eagle, players need to destroy the enemy base along with their lab. During these eight chapters, each has different Honorable Missions. Complete different honorable missions, and the player will unlock the unique Honor Medals.