环保达人狄克史卓毕奇和詹姆史坦斯费尔德，这次的任务是帮助黑帆青年旅馆永续经营。这家英格兰最偏远的青年旅馆，即将失去电力运输道路，可能被迫停业。狄克和詹姆必须加紧脚步，想出最环保的发电方式。他们决定利用风力和水力，为黑帆供电。
Eco engineers Dick Strawbridge and Jem Stansfield are the Planet Mechanics. This week their mission is the rescue of Black Sail Hut -- England's most remote and hugely popular hikers' hostel. Very soon, Black Sail will find itself without access to electricity and may have to close. Dick and Jem have been invited to find a solution while the clock ticks against them. Their only allies in this battle are the elements that raw nature can provide them with wind and water. With a couple of ambitious solutions in mind, they set about building machines that can generate the greenest electricity possible and hope that its enough to save Black Sail.
