小贼周吉祥和师傅偷了一件宝贝，师傅因此而丧命。师傅临终前叮嘱她要保护好那件宝贝。不久，周吉祥也被警察抓获，她把宝贝藏在破庙里的佛像下边，侥幸逃过警察的搜寻。周吉祥被判入狱两年，出狱后她第一件事就是去找回宝贝，可是到了那座破庙才发现，那里早已经变成了警察局。吉祥诚惶诚恐地进了警察局，想一探究竟，没想到这里只有三个警察加一个局长，吉祥阴差阳错地混进警局当了警察，她还惊喜地发现：宝贝还在原处。在警局里，吉祥和大家处成了朋友，并且喜欢上了警察孔有礼。那么，师傅让吉祥保护的东西到底是什么？日寇横行的年代里，这件宝贝还会经历什么波折？吉祥和孔有礼这对有情人能否终成眷属？
The world of Remnant is filled with horrific monsters bent on the destruction of humanity. Fortunately, the kingdoms of the world have risen to combat these forces by training powerful Huntsmen and Huntresses at academies around the planet. Ruby Rose, Weiss Schnee, Blake Belladonna, and Yang Xiao Long are four such Huntresses in training whose journeys will take them far past the grounds of Beacon Academy. Though each may be powerful on their own, these four girls must come together to work as a team if they truly hope to become the next generation of Remnant's protectors. But can they succeed at each other's side when dark forces gather to divide and destroy humanity?
影片承接前作，银河护卫队成员们已经在虚无之地上安顿了下来。然而，由于火箭浣熊（布莱德利·库珀 Bradley Cooper 配音）的动荡往事的侵扰，他们的生活很快被打破。“星爵”彼得·奎尔（克里斯·帕拉特 Chris Pratt 饰）依然迷失在失去卡魔拉（佐伊·索尔达娜 Zoe Saldana 饰）的痛苦中，但是他必须团结起他的团队，前往执行一项危险的任务，只为营救火箭浣熊。如果这项任务失败，那么为人熟知的银河护卫队有可能就此走向终结。
