《Qiang Qiang children to rivers and lakes》Ep4:Episode 4
David's harmonica was stolen by a young boy who met Su Can to chase the little boy. Su Can asked Ching Chun why he hated him, Zhichun said he had nothing but money. On the train bound for Beijing, David met drunk Zhao's son, cousin Han Yuting thin, David beat him. Su Can climbed the train window from the toilet window, met David, the two chat more speculation. Officers and soldiers hunt Yao FengYu and Huo YuanJia on the train, while David and Su Can block the way of the officers and soldiers. Yao FengYu and Huo YuanJia safely get out. David came to Yenching University, to get out of school catch-up when Han Yu-ting, Han Yu-ting Zhao three uniforms stolen to David put on.