马克斯是澳大利亚一个工人阶级家庭里的八岁小男孩。一场突发的悲剧导致其父母的婚姻关系加速恶化。马克斯身处家庭矛盾的中心，他希望通过一年一度的节礼日水战来调节父母之间的矛盾，而他的计划奏效了。 　　Max is an eight-year-old boy from a working-class family living in Australia. A sudden and tragic event triggered the rapid deterioration of his parents' marriages. He is caught in the center. Max hopes the annual Boxing Day water fight can reconcile his parents and his plan works.