Between quarreling parents, mocking brothers and psychiatric patients, Josse grows up in an unusual environment. No wonder he struggles with feelings of being overwhelmed. A tragicomic celebration of life and its absurdities.

11岁的小男孩托比是一个狂热的小发明家。一天，他遇见了正在寻找父母的机器人罗比，原来罗比一家的飞船遭遇了事故，罗比不幸和家人失散了，于是托比决心施以援手，两人成为了好朋友。为了方便搜寻，他们发明了一个既能航行，又能浮在水上，还能在路上行驶的飞行器——奇幻冒险者。然而心怀不轨的约书亚连同他的伙计紧随其后，想利用罗比和奇幻冒…