It's the final exam of the Detective Academy. Xiao Zhen, who dreams of becoming a little detective, is late due to a malfunctioning alarm clock. He misses his group and enters the detective forest alone to solve the case.
Dangdang, the king of destruction dog, and Beibei, a cowardly carrier pigeon who followed him hiding in his schoolbag, became Xiaozhen's little helpers.
The three friends help each other along the way, solve various mysterious cases, and start a big adventure of courage and detective...
They grew up in the adventure, constantly overcome their own shortcomings, achieved transformation, and established the "Courageous Detective Team", becoming real detective adventurers and embarking on a more challenging detective path.
Mission: As long as you have courage, your dreams can come true.
