A young woman on the run from the mob poses as her wealthy twin sister to try and evade them, but soon discovers that her sister has a price on her head as well.
Cast: Sarah Michelle Gellar, Tara Summers, Zoey Deutch, Jaime Murray
As the vow renewal nears, Bridget realizes she first needs to tell Andrew the truth about who she really is. Meanwhile, just as Bodaway Macawi starts to close in on Bridget, Agent Machado is forced off the case and Henry decides whether he should tell Bridget the truth about Siobhan.
Catherine's plan to drive Andrew and Bridget, posing as Siobhan, apart unravels. Agent Machado discovers who wanted to kill Siobhan all along and rushes to intercept the killer before it is too late. Meanwhile, Siobhan's plan to help Henry backfires when the main witness suddenly dies.
Still posing as Siobhan, Bridget admits to Agent Machado that someone tried to kill her months earlier and she thought it was Andrew. Bridget goes to Henry's apartment, where Siobhan overhears Bridget accuse Henry of Tyler's murder. Meanwhile, Catherine goes to desperate extremes to bring Andrew closer to her.
Bridget decides that the only way she will feel safe is if she testifies against Bodaway Macawi.
After an attempt is made on Bridget's life, Agent Machado is determined to find who was responsible. Henry accuses Siobhan of putting a hit out on Bridget, while Bridget thinks Olivia was behind it. Meanwhile, Andrew admits to asking Malcolm to leave town and Juliet goes missing.
Bridget fears that something has happened to Malcolm when she cannot get in touch with him. In an effort to find him, Bridget visits the hotel where Malcolm was staying and discover on security footage that Andrew was the last person to see Malcolm before he disappeared. Meanwhile, Juliet discovers that someone in her family played a part in the attack on Tessa and Siobhan admits to Henry the reason she faked her death.
Agent Machado's past with his informant, stripper Shaylene Briggs is revealed and Siobhan deceives Malcolm when she pretends to be Bridget...
Andrew proposes again and Bridget realizes she is in over her head. Olivia (guest star Jaime Murray) becomes increasingly suspicious of Malcolm while he is working at Martin/Charles. Juliet makes a decision that forces her mother Catherine (guest star Andrea Roth) to take drastic measures.
Bridget encounters Dylan (guest star Misha Collins, "Supernatural"), who was an important part of the sisters' past. After finding something in Henry's possession that belongs to Bridget, Malcolm befriends Henry to keep an eye on him. Catherine (guest star Andrea Roth) asks Andrew to make a big decision regarding Juliet that could change their family dynamic.
Bridget visits some of the last locations Siobhan went before she disappeared and discovers that Siobhan kept a secret office...
Juliet's mother Catherine (guest star Andrea Roth) arrives in town, where she proceeds to wreak havoc on Andrew and Bridget's relationship. Bridget discovers someone from Siobhan's past and thinks he might be the key to her learning more information about her sister. Meanwhile, Henry discovers a lead that causes Agent Machado to think he is closing in on Bridget.
Bridget offers to host a fundraiser that her friend Greer (guest star Madchen Amick) is holding for Juliet's school and discovers that Greer knew one of Siobhan's deep dark secrets. While back in New York, Siobhan discovers that Bridget has settled into her former life more easily than Siobhan expected and she is determined to change that. Meanwhile, Malcolm decides to work for Andrew at Martin/Charles in order to keep an eye on him, and Henry mourns the death of his wife.
Henry begins to target someone as a suspect in the disappearance of his wife Gemma and realizes he must work with Bridget to find out more information. Malcolm talks to the police about his suspicion of Charlie (guest star Billy Miller), while Juliet develops an unhealthy obsession with her teacher Mr. Carpenter (guest star Jason Dohring). Meanwhile, Agent Machado meets with an informant (guest star Amber Benson) back in Wyoming.
While Henry and Olivia form an attraction to each other, Bridget's realizes she's developed feelings for Andrew. Bridget's new NA sponsor raises concerns with Malcolm. Hoping to find out more about Siobhan, Bridget sets up an appointment with her sister's therapist.
Andrew and Bridget are told some upsetting news that also affects Henry. Juliet continues to form an unlikely bond with her teacher Mr...
Still posing as Siobhan, Bridget is forced to reveal she has a twin to Andrew and Henry when Agent Machado starts closing in. Henry becomes a suspect in the whereabouts of his wife, Gemma and Juliet starts partying to dangerous extremes. Meanwhile, Malcolm escapes and is on the run from his kidnappers.
When Bridget is unable to get in touch with Gemma, she starts to suspect that something has happened between Gemma and Henry. Juliet starts a new public school, where she must defend herself against the school bully, and her teacher, Mr. Carpenter, comes to her rescue. Bridget asks Charlie for a favor that could come back to haunt her, while Agent Machado starts to investigate Malcolm's disappearance.
Gemma asks Bridget, who is still posing as Siobhan, to do her a risky favor. Henry receives some disappointing news about his writing career, and Andrew struggles with his rocky relationship with his teenage daughter, Juliet. Bridget meets a potential new sponsor named Charlie at a local Narcotics Anonymous meeting, while Malcolm battles his demons when he is put in a situation that threatens his sobriety.
Bridget, still posing as Siobhan, takes a trip to the Hamptons with Andrew, Gemma, and Henry to celebrate her birthday. Despite the close proximity to Gemma and Andrew, Henry is determined to rekindle his affair with Siobhan. Gemma learns some upsetting news, and FBI agent Machado uncovers some new information, which forces Bridget to reveal some information about her past in order to protect her secrets.
Bridget learns she has a potential clue to bring her closer to Siobhan's killer. Bridget discovers some interesting information about Andrew, which causes tension between them. Meanwhile, Agent Machado continues his pursuit of Bridget and tensions flare between Henry and Gemma over their investment in Andrew's hedge fund.
Bridget scrambles to find a way to cover up a crime she recently committed, while still leading everyone to believe that she is Siobhan Martin. Bridget's past starts to catch up with her, however, when FBI Agent Machado decides to stay in New York City and investigate Siobhan's life.
Bridget Kelly is six-months sober and starting to turn her life around when she is the sole witness in a murder trial. Despite the assurances of her FBI protector, Agent Victor Machado, Bridget knows her life is on the line. She flees to New York, telling no one, and reunites with her estranged twin, Siobhan Martin.