大雄(小原乃梨子 配音)与哆啦A梦玩耍时意外发现,房间的塌塌米下方与旷野星上一艘太空船相连,太空船的主人叫罗布鲁(菅谷政子 配音)。大雄与哆啦A梦(大山信代 配音)阴差阳错地进到了这个星球,在旷野星上,引力比地球小,大雄成了大力士飞毛腿,成了旷野星的超人了。同时也结识了一批旷野星上的朋友,罗布鲁的妹妹克蕾姆(小山茉美 配音),还有跟哆啦A梦一样爱吃铜锣烧的江姆(杉山佳寿子 配音),全身覆毛的雌性动物,是罗布鲁的宠物。而罗布鲁的家人和邻居遭到了卡尔泰矿业公司驱赶,这个公司专门将星球上的人们赶走后,不顾星球的存亡,疯狂得开采星球上的资源,导致有许多星球已经不适合人居住了。为了不让罗布鲁的星球遭到破坏,大雄决定留在星球上与坏蛋斗争到底……The twist of hyperspace had been brought about by an accident when Nobita's room connected to Roppuru's spaceship door. Nobita who made friends with Roppuru helps him to cultivate the wild planet where he is settled. On the planet that has far less gravity than the Earth, Nobita is like Superman. He confronts the company that hunts down resources of the planet with his toy guns.