简驾车时出了车祸，伤愈后发现失去的记忆开始恢复，这对患失忆症的她来说真是意外。在私家侦探的帮助下她了解到：自己曾是联邦调查局的特工。受反恐怖组织头目伯吉斯的委派，去对付恐怖分子迪达。但她不知道，警匪两家正串通一气制造大案，为的是让政府意识到反恐怖组织的重要性，增加财政拨款，她自己只是这肮脏交易中的一个牺牲品。但现在，谁都以为早已不在人世的她再次出现，这引起伯吉斯的极大恐慌。了解了自己的过去，简也清楚目前的处境，但此刻的她已不是温文尔雅的女教师，做特工时练就的一身绝技要派上用场了，目标是当年的上司和整个犯罪集团。

当戴维斯·格林迷人的年轻表妹亚历克西斯出现在他家门口时，他发现了自己家族中一直保守着的秘密。随着两人的关系越来越近，他们开始着手揭开让他们家庭分崩离析的惊人秘密。

Gwen grows up with her romantic mother constantly telling her the story of her courtship and marriage to her father. Nick grows up with an alcoholic father who can't hold a job and whose family, as a result, is forced to move all the time. The two are shaped by this - Gwen a romantic and Nick withdrawn, unsure of himself - as they watch the hugely popular sixties sitcom, "One Big Happy Family." Years later, it is the star of that show, now a child actor gone bad with a history of detox and people always saying, "I thought she was dead," Francesca Lanfield, who connects the two of them, after years of near-misses and almost encounters. Gwen is hired to ghost-write Francesca's autobiography, while Nick, becoming her lover, is the architect who is to design a building on Francesca's property. When Gwen decides to crusade to save Francesca's building, she writes letters to the newspaper which catches Nick's attention - and wins his heart.