As the conclusion of the trilogy, Yinhu 3 is satisfactory. There have been many abused small animals, and their emotions are definitely heavier than the previous two episodes. The action scenes are all exciting, with twists and turns in the story, and continuous difficulties and obstacles. It is difficult to predict who will survive until the end, and one often feels heartbroken. The friendship and loyalty between Yin and Hu remain the core themes, but at the same time, the environmental themes and the extreme consequences brought by crazy scientists are also thought-provoking.