Grandma Qiu-tao, now 70 years old and still a pushover, is arrested for owing millions in taxes from her family’s wholesale crystal business. Upon posting bail, Qiu-tao investigates and discovers that her husband, CHEN Zong-long, has taken advantage of the opportunity to empty the store’s crystals and disappear without a trace. Left to handle the massive tax debt and court case alone, she later finds out that he has started a new company with a “close female friend.” The mild-mannered, hard-working and honest Qiu-tao reaches her breaking point. She calls upon her two former prison friends from a previous stint 40 years ago — Yue-jiao (75) and A-zu (61) — to help her. Determined to seek justice against her irresponsible husband, the three grandmas, each with contrasting personalities, reunite. They prepare for an outrageous and daring heist to reclaim the precious crystal geodes that CHEN Zong-long stole.
70歲的秋桃阿嬤因自家經營的水晶批發店欠稅上千萬而遭到拘提,這一切的始作俑者正是她的老公陳宗龍,他卻趁機搬空店內水晶,消失無蹤,不僅丟下她獨自承擔鉅額稅款,還與一名紅粉知己另組新公司東山再起。秋桃終於忍無可忍,找來40年前結識的兩名獄友──75歲的月嬌和61歲的阿足幫忙,一同向她的無良老公討回公道。