护卫者

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　　未来城的大脑潜能开发实验迟迟没有突破，出资者安小姐闯入实验室，用大家的性命和前途威胁教授，尽快拿出成果。所有科研人员在迫不得已的情况下对被实验者陆崇生进行了高强度的实验，却又忍不住同情他，连一向沉迷科研的教授都开始有异常的感觉。为了反抗安小姐，教授开始试图用其他方法找出实验的突破点，却无意中发现了许多被尘封的秘密。这些秘密不仅与大脑潜能开发实验有关，也与教授有关，教授无意间发现了自己和其他实验人员之间被掩盖的一些秘密。

　　Johnny Casar (Mickey Rooney) runs away from a home for wayward boys, tired of being teased about being short and a poor athlete. He soon finds a pair of roller skates and is befriended by Bruno Crystal (Ralph Dumke), who allows him to wash dishes at his café, while a priest who runs the home, Father O'Hara (Pat O'Brien), secretly keeps an eye on him.
　　A traveling roller-skating team takes an interest in Johnny after he shows some aptitude. He clashes with Mack Miller (Glen Corbett), a cocky champion, and falls for Mary Reeves (Beverly Tyler), another top skater. Johnny ends up featured in grudge matches against Miller, where they take turns one-upping one another.
　　As his fame grows, Johnny becomes every bit as arrogant as Miller and more. Life takes a bad turn when he is diagnosed with polio. A long period of physical therapy follows, until a wheelchair-bound Johnny tries to get his life back on track.

本篇故事承接前作《格桑花开的时候》，江若婷（郑岚 饰）作为老师责任越来越重，面临的考验也越发升级。她不仅遇到老司机（修睿 饰）的不断骚扰，还有金主爸爸（赵亮 饰）提出的两难选择，老顽童郭爷爷（马德华 饰）的多次整蛊，笨贼（李昆鹰 饰）对善款的虎视眈眈……象征幸福的格桑花能否陪伴江老师度过重重难关呢？