Bridget, who's still posing as Siobhan, heads to the Hamptons with Andrew, Gemma and Henry to celebrate Siobhan's birthday. While there, Henry is adamant about rekindling his affair with Siobhan. In other events, Gemma learns some unsettling news and Bridget is forced to reveal some of her past when Machado closes in on some new information.

Bridget offers to host a fund-raiser for Juliet's school and learns that her friend Greer knows one of Siobhan's secrets. Siobhan can't believe that Bridget has adapted as well as she has to her new life. Malcolm goes to work for Andrew. Henry mourns his wife.

Bridget, as Siobhan, tells Machado about the attempt on her life and who she suspects was behind it. Bridget accuses Henry of Tyler's murder unaware that Siobhan is listening in. A desperate Catherine takes extreme measures to get closer to Andrew.