The group journeyed around Dianchi Lake, fully appreciating Kunming's ecological beauty. They also competed in a series of games to compete for the right to answer questions in the "Dianchi Lake Quiz Contest," working together to achieve victory. At the Longmen Algae-Water Separation Station, the group witnessed the process of separating the algae from the water in Dianchi Lake. The "green paint" water, after undergoing a series of processes, became crystal clear before returning to Dianchi Lake. After experiencing the diverse agricultural tourism offerings of the region, the group embarked on a new challenge focused on Yunnan's "magical" cuisine.

The "Brotherhood" split into three teams for a game competition and a relay painting session. Zhang Zhenyuan admitted he could only rely on his teammates, while Sha Yi boasted he might draw a "new species." The "Brotherhood" sought balance in the "Balance Bridge" game. Sha Yi pulled left and right, pulling two people together. Zhou Shen nearly overpowered "Big Black Bull" Li Chen with a single, sweeping move. Led by Dr. Zhang Jinfeng, Director of the Kunming Arboretum of the Yunnan Academy of Forestry, the members searched for the "giant panda" of the botanical world—the Parashorea chinensis.

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.

As soon as the game started, Zheng Kai, who was labeled with three blockade tickets, was closely watched throughout the game. Bai Lu, who cleverly used the rules, worked hard to find clues to help the team turn the tide of the battle. Fresh off his success, Fan Chengcheng's reaction to his opponent's sudden attack was unexpected. Meanwhile, Sha Yi, facing questions from name tag ripping novices Zhang Zhenyuan and Fan Shiqi, bravely taught them techniques like the "pull-down," "bounce," and "Li Chen" style. To collect the "Ten Scenic Spots of Hangzhou" and secure lifetime membership in the Landscape Association, everyone started scratching off green energy points. Song Yuqi, driven by a competitive spirit, was so overwhelmed that everyone urged them to stop. Deng Enxi's single shovel strike elicited screams from the audience.