《火药奶昔》讲述一名叫做萨姆的杀手因为在一次行动中违抗了上级的命令而遭到追杀，于是决定和自己失散多年的母亲共同对抗犯罪组织的故事。萨姆的母亲斯卡利特曾经是一名精英刺客，斯卡利特帮助组织完成过无数艰难的任务，也是组织内许多新人的偶像，但是萨姆和母亲被迫分开时，自己却只有12岁，从小缺少母爱的萨姆快速成长，逐渐成为一名顶级的刺客，她却无时无刻都想要追查自己母亲的下落

15年过去的萨姆逐渐追随母亲的脚步，依靠自己的才能，不断收拾组织留下的各种烂摊子，但是在工作过程中出现问题时，萨姆又不得不效忠组织，这让她觉得违背自己的良心，于是在一次执行任务的过程中，萨姆守护了自己要暗杀的目标，这也让萨姆与整个组织为敌，恰在此时母亲出现，母子二人得以相见。

"Gunpowder Milkshake" tells the story of a killer named Sam who was hunted down because he disobeyed the orders of his superiors in an operation, so he decided to The story of fighting a criminal organization with his long-lost mother. Sam's mother, Scarlett, used to be an elite assassin. Scarlett helped the organization complete countless difficult tasks and was also the idol of many newcomers in the organization. But when Sam and his mother were forced to separate, he was only 12 years old. Sam, who lacked maternal love since she was a child, grew up rapidly and gradually became a top assassin, but she wanted to track down her mother's whereabouts all the time

In the past 15 years, Sam has gradually followed in his mother's footsteps, relying on his own talents, and constantly cleaning up the various messes left by the organization, But when something went wrong during the work process, Sam had to be loyal to the organization, which made her feel that it was against her conscience, so during a mission, Sam guarded the target she was going to assassinate, which also made Sam feel that it was against her conscience. It was against the entire organization that at this moment the mother appeared, and the mother and son were able to meet each other.