You can fly, Dan Yang.

Episode 17:
The criminals use various strategies to force specialist He to hand over the research data, but she does not consent. An old resident of the place gives useful clues for the police to reach the place of captivity where Specialist He is. They use an antique lion clock as their main clue. (This old informant also talked about Boss Li's family). A criminal woman tells the lizard (the spy driver) that he has to decide what to do with specialist He. The 2 bandits secure Specialist He's captivity with several boards with nails. Hong Mei arrives at Specialist He's captivity and frees her. The bandit looks from afar (it even looks like they set a trap). The police discover that they have yet another enemy. The spy driver tells Boss Li that he needs to finish his job in the laboratory so that he can then meet the girl he loves. Painting experts explain what the sharp object used in the painting actually was. Bai Hui and Hong Mei take Ji Dan Yang to the construction site. When they don't notice, he gets up from his wheelchair and starts to inspect the place. They are amazed that he was able to walk. But it was the joy of being in his workplace. The welding specialist welcomes Ji Dan Yang to the construction site very happily. Dan Yang happily tells the two girls to take the wheelchair away, as he never wants to see that chair again. Li Guang left a negotiating message with the Taiwanese commanders, information he did not pass on to the lizard (spy driver). Enemies closely follow the progress of the development of the submarine project and follow in the footsteps of the snow wolf. Two nurses are irritated by Bai Hui's success at the hospital. Dan Yang returns to his dorm and tells Bai Hui and Hong Mei that he feels trapped in a cage in the hospital. He couldn't fly. Hong Mei tells him to fly, fly, fly. And all 3 laugh. Specialist He and Dan Yang explain some elements of the project to Hong Mei in a didactic way. The police take precautions to avoid sabotage in the factory and laboratory (Chief Li was present). The commanders come to the conclusion that the clues lead to a high school teacher. Captain Chen tasks Hong Mei with taking some police officers to protect the experts at the construction site. Capitain Chen informs Hong Mei about Boss Li's relationship with the Hong Kong girl. Hong Mei sneaks into Boss Li's room and discovers information.

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