十九岁那年，沈星（易烊千玺 饰）骑着小摩托穿越边境漫长的花海，误入一片荒蛮之地。他像当地人一样抹上蓝泥抵御着无处不在的花粉，也在这时真时幻的花粉中，经历着一个个斑斓、狂野而离奇的故事。

故事发生在“汉末建安中”，焦仲卿与刘兰芝二人的爱情悲剧。与三国波澜壮阔的群雄争霸有何关联?

After a critical intelligence leak, a national security unit launches an intensive investigation. But successive setbacks in their arrest operations reveal a shocking truth: the trail leads back to within the unit itself. Amidst a storm of trust and betrayal, a silent battle begins to unfold...