此期节目中，“兄弟团”走进以云南野生菌为办学特色的福德小学。在学校体育馆展开的“成菌结队”连线游戏中，成员们分成三队开启斗智斗勇竞技模式，为本队荣誉全力奔跑。通过临摹生物，成员们深感植物界权威著作《中国植物志》诞生背后的不易，于是进到三本书籍里，从书中人物的视角了解更多生态故事。郑恺作为书中主人公的弟弟，代替因工作原因未能到场的哥哥在礼堂发言，讲出一代代艰苦奋斗的林场人的心声。
In this episode, the "Brotherhood" visited Fude Primary School, which specializes in Yunnan wild mushrooms. In the school gymnasium, the members split into three teams and engaged in a "Mushroom Team" online game, each competing for their team's honor. By copying organisms, the members gained a deep understanding of the challenges behind the creation of the authoritative botanical work, "Flora of China." They then delved into three books to learn more about ecology from the perspectives of the characters. Zheng Kai, the younger brother of the book's protagonist, spoke in the auditorium on behalf of his older brother, who was unable to attend due to work commitments, expressing the heartfelt sentiments of generations of hardworking foresters.
