Picking up from where the last season left off, security realizes that a gun was fired in Ed's suite, as Danny and Ed's daughter realize they have deeper feelings for each other than either of them wanted to admit. Samantha realizes what trouble she's in when one of her high roller clients rolls into the hotel's beach front resort in Hawaii and rolls up a half a million dollar bill and threatens to leave it in her lap, along with the dead stripper in his room.

　　Ed is framed for murder when enemies from his past resurface. Danny and Mike secretly intervene to investigate and take matters into their own hands. Meanwhile, Sam, Nessa, Mary and Delinda desperately attempt to find tenants for their new joint-purchased home, settling on what they think to be the perfect tenants, only to discover they've misjudged the situation.

　　《赌城风云》(Las Vegas)这部快节奏、刺激的剧集继续讲述拉斯维加斯的精英保安队如何维护这个欲望之都最大赌场的安全。爱德华(Edward Melvin Deline，詹姆斯-凯恩饰演)，是Montecito赌城保安队主管。丹尼(Danny McCoy，乔什-杜哈明饰演)是一名出生于拉斯维加斯的前美国海军，他也加入了精英保安队。他们两一起面对老千，意图偷窃大笔金钱的竞争赌场等。　　丹尼和爱德华唯一的女儿德琳达(Delinda Deline，莫莉-西姆斯饰演)的感情，Montecito赌城更换新老板，赌城一次次被盗。都是故事发展的线索。

　　故事围绕德国最古老的智能家居展开，这座房子自从50多年前其主人在神秘情况下去世后一直空置至今。当一个家庭终于在现代搬进来时，电子家庭助手卡桑德拉从长达数十年的沉睡中醒来，决心利用她所能掌握的一切资源，确保自己不再被孤单遗弃。

　　中国奖学金生魏某前往新西兰，在一所著名大学攻读医学研究。她害羞、内向，脸上有遗传性胎记，因此被她交际花表妹安吉拉和她那些光鲜亮丽的朋友们所排斥。魏女士决心改变自己的命运，她全身心投入已故父亲的研究，研究一种可以治愈她畸形的革命性的皮肤移植手术。随着她的实验出现转折，她变得更加危险和失控，愿意消灭任何威胁到她的秘密的人。