在这部杰瑞的日记喜剧/动画/短片/家庭片中,这一天，汤姆有杀气腾腾地守在杰瑞的洞前，准备好好戏耍这个小家伙。可是收音机里的一条新闻让他打消了念头，原来今天开始就是爱护小动物纪念周，主持人提倡大家用爱心呵护身边的小生命。汤姆心有所动，移去了洞前的陷阱，转而取来鲜花、礼品和美味的蛋糕。他诚心诚意“敲门”，可是里面全没有动静。好奇的汤姆伸进洞里张望，发现杰瑞此时并不在家，而桌子上一本日记引起了他的注意。他拿出来翻阅，里面记满了杰瑞和汤姆日常打闹的趣事，比如草皮横飞的高尔夫球大战（Tee for Two）、险些把杰瑞夹死的捉鼠指南（Mouse Trouble）、火光四溅的烟花对攻（The Yankee Doodle Mouse）等。
汤姆起初看得哈哈大笑，可是似乎日记本里全是关于他的糗事，令他颇为不爽……
The radio announces "Be Kind to Animals" day, so Tom gets Jerry flowers, chocolates, and a nice pie. Jerry isn't home, but Tom spots his diary and starts reading it (an excuse to show old clips). In the process, he grows increasingly irate, and trashes the flowers, then the chocolates. Jerry returns, and Tom decides to give him the pie, in the face, of course (in fact, it plasters him all over the wall).
