For young Angus, the central dilemma is the lack of a father figure, and thanks to the appearance of the water horse, he forms a friendship with recently hired handyman Lewis Mowbray (Ben Chaplin).

• 水马驮着安格斯畅游尼斯湖，出入于水面和湖底。在水马遭遇危险的时候，他们奋力去保护它。水马最后在炮火中跃入大海，成功逃生。儿子告诉我，看到这一情节时，他流眼泪了。看来，这是全剧的高潮所在。