在这部克斯和伯恩斯坦 第一季喜剧片中,12岁的悦特·泰勒·伯恩斯坦（Cole Jensen）是家里唯一的男孩。他整天被他的姐妹围绕着，和自己分享一个房间的克莱欧·阿纳斯塔西娅·伯恩斯坦（Landry Bender），上高中的姐姐阿曼达·伊丽莎白·伯恩斯坦（Oana Gregory），和最小的妹妹雅斯米·爱里 卡·伯恩斯坦（Mckenna Grace）。悦特每天的生活都和女孩有关系，没人陪他运动，打游戏，粉红色的生日排队，女孩子的生日礼物。。。虽然悦特的好朋友旆斯多（Aaron R. Landon）一直帮助他，但他还是做梦都想要一个好兄弟。在悦特12岁生日那天，他在他的派对上用纯粹好玩的心态定做了一个名叫克斯（Tim Lagasse ）的布偶。结果派对结束不久后竟然有快递员送来了一个会动会讲话的布偶（克斯）。在悦特的要求下他们留下了克斯，但是除了悦特以外没人喜欢他。克斯很喜欢砸东西，他什么都弄坏过。克莱欧和阿曼达早就受不了克斯了，于是她们经常想办法把他送走，但每次都没成功。另一方面悦特也要帮克斯适应学校生活。。。
Wyatt Bernstein is a typical boy who enjoys hanging out at the local arcade with his friend Pesto. In a household full of females, Wyatt desperately wishes for a brother he could do fun guy stuff with and who would provide him much needed male reinforcement at home. When he is reluctantly taken to a Build-A-Bestie store by his family for his birthday, he creates a boy-filled version of a Bestie. Wyatt's dream finally comes true when his creation, Crash, comes to life. Together, the new brothers help each other navigate life's experiences - Crash helps Wyatt come out of his shell and Wyatt introduces Crash to life as a kid. Although they sometimes have their differences, like true brothers, they always have each others back.
