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世界电压等级最高的1000kv电网，如何穿越长江？电力工作者们在层层论证后，否定了从长江上面实施的大跨越方案，改为盾构方式，从长江底部穿过。面对长江底下复杂的地层环境，这次盾构能否成功？ 而面对五公里多的弯曲不平的长江底部管廊，电力工人们又是如何把长达18米一根、重量达到三四吨的气体绝缘导体装入管廊内，而且要达到零漏气、零放电的要求？最后，他们能否顺利完成通电？。Virginie Thévenot, a somewhat special math teacher, takes advantage of a general strike in a college to try an extraordinary experiment with a small group of students. She takes a bet: let them do what they want... A spark that will ignite the spirits of teenagers, cause a small revolution within the college, and turn their lives upside down.。