Angus, a Scottish boy, accidentally found a strange dome. Under curiosity, Angus brought the egg home. Soon after, the egg broke out of its cocoon and hatched a strange creature that had never been seen before. Angus discovered that this creature, who looked a bit like a horse, was naturally interested in water and was talented in swimming. Excited Angus asked his sister and friends to come and watch his amazing discovery. Friends like this little guy, but the attitude of the adults is not necessarily the same. Therefore, Angus decided to hide from his mother and secretly Keep it up. However, this little guy grew so fast that soon Angus couldn't hide it. In desperation, he had to bid farewell to the "Water Horse" in tears and put it into the wild life of Loch Ness. However, neither Angus nor the little boy have forgotten the years they had spent together. And when it was learned in the newspaper that the "water horse" was photographed by reporters and triggered an upcoming wave of expeditions, Angus hurriedly rowed to the lake to find the "water horse". "Water Horse" immediately appeared in front of Angus when he heard the call. It made Angus ride on it and started a wonderful journey with Angus
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