A friendship no-one ever thought possible leads to an adventure no-one will ever forget. The touching, heart-warming, yet rousing story of the unlikely relationship between two diverse creatures makes sure of that. Zeus is a rather mangy mutt, a domestic pet who forms an inexplicable bond of friendship with Roxanne – a dolphin used for research. They also manage to communicate well. In the process, their owners get close as well. But others are attempting to stop the growing relationship between the dog and the dolphin. Now, the two adults must risk their lives to keep them together.一段没有人看好的友谊，带来了一趟令人难以忘怀的冒险之旅……这是一出温馨、感人又鼓舞人心的故事，宙斯是一只自由无羁的小狗，它的主人是音乐家史提夫贾腾柏格（「金牌警校军」）；罗珊是一只善解人意的海豚，它的主人则是一心奉献海豚研究的生物学家凯瑟琳昆兰（「法网边缘」）这两只小动物，生活在截然不同的环境、说着完全不同的语言，但是却仍能沟通，并发展出一段不可思议的友情，同时，也让两个主人之间产生了情愫。另一方面，宙斯与罗珊能沟通的意外发现，让玛丽的研究有了新的突破，此时，竟有人处心积虑想破坏两只小动物的感情，于是，俩主人决定冒着生命的危险，保护宙斯与罗珊之间的独特友谊！导演乔治米勒另有「回到大魔域II」、「神气宝贝」等作品。