With tensions already high, Emma is thrown into a tailspin when her creepy foster brother, Travis, shows up from Las Vegas. Seeing he has an upper hand with Emma, Travis decides to use his knowledge of Emma's situation to his benefit. With her relationship with Ethan still strained, she has no one to turn to and forced to go along with Travis' plan if she has any hope of getting him to leave her alone. But with her old life looming over her, will this be the straw that breaks Emma's back? Meanwhile, Sutton is forced into Emma's life when she is sent back to Las Vegas.

The episode was rated 7.79 from 56 votes.

Ethan insists on helping Emma get the answers she's looking for about her twin sister. So when a tattoo sparks a memory about Sutton, Ethan pursues an explanation. But the information proves costly when Ethan heads into a situation that quickly gets out of control. Meanwhile, Mads sneaks off to see Ryan, and Laurel continues to see Justin against her parents' wishes.

The episode was rated 7.79 from 57 votes.

When Ethan is implicated in a serious crime, he and Sutton leave town and hide out with his father, Ben, on the reservation where he grew up. A burgeoning tension between father and son has Sutton playing mediator, but, despite the awkwardness, she appreciates seeing a side of Ethan that she did not know when they were together. Meanwhile, Emma is left to deal with the aftermath of Ethan’s situation when she must pretend to be witness to a scene where she was not present.

The episode was rated 7.86 from 57 votes.

Caught by the FBI, Ethan is brought back to Phoenix to face charges for murder. As Emma continues to search for evidence that can help Ethan’s case, she clashes with Ted and Kristin over her unwavering support of a murder suspect. Alec’s relationship with the victim prevents him from taking the case himself so he assigns a star prosecutor from his firm, prompting Dan to reach out to an ex-girlfriend who is now a successful defense attorney. Meanwhile, encouraged by their time together in hiding, Sutton has her own plans for Ethan.

The episode was rated 7.90 from 59 votes.

On the night of the country club’s Black and White Ball for junior members, Emma finds herself on the outside looking in, and Ethan must put up a façade in order to protect her. Although their loyalty to each other is strong, the jealousy and lies start to take their toll. Can Emma and Ethan look past their doubts and mend the wedge forming between them? Meanwhile, Laurel and Ted are both left reeling after they discover the motive behind Justin’s actions. And Rebecca and Mads counsel each other on matters of the heart.

The episode was rated 7.91 from 53 votes.

As Emma, Ethan and Thayer continue to search for the truth of what happened to Sutton at the lake, they follow a lead that raises more questions than it answers. But when a poorly-timed encounter threatens to expose her identity, Emma is left in a precarious position that turns her life upside down. Will she be able to recover? Meanwhile, Laurel impresses the crowd at her mom’s charity benefit with her musical talents, and Rebecca and Alec get to know each other better.

The episode was rated 7.93 from 57 votes.

Questions surrounding Emma arise when Thayer returns to Phoenix and everyone deals with Eduardo's accident. What does Emma know about the accident, and why does Thayer seem to know more about the situation even though he has been in L.A.? Sutton's friends are tired of the lies and demand answers from Emma. Not exactly knowing the whole story surrounding Eduardo's accident, will Emma finally tell Mads and Char about the switch to save their friendship, or will she risk it to save Sutton's secret? Meanwhile, Sutton finds more trouble than she expected at Dowinger Clinic as she finally comes face to face with her mother.

The episode was rated 7.95 from 60 votes.

After revealing Sutton's real relationship with Ethan, the Mercers insist she invite him over for dinner. Hesitant because of his obvious feelings for Emma, Ethan obliges, only to have the dinner cut short by a disturbing visit from Dan. As Emma and Ethan struggle to keep order in Arizona, Sutton and Thayer discover shocking revelations in Los Angeles pertaining to the search for the girls' birth mother. Although the outcome may not turn out to be what Sutton had hoped for, it does lead her to wonder what everyone around her has been hiding for all these years. Will Sutton be able to find the answer about why she and Emma were separated, or will her curiosity put her and her loved ones' lives in danger? Meanwhile, Laurel falls for a new guy in school hoping she will finally have something of her own, as opposed to always being in Sutton's shadow. Unfortunately her wishful thinking is cut short when Char calls dibs on the one Laurel did not want to share.

The episode was rated 7.95 from 64 votes.

Sutton and Emma soon find they have had the same dreams and similar childhood experiences.

The episode was rated 8.03 from 66 votes.

Secrets abound in the Mercer household and Emma has had about enough of it. When she overhears an argument between Ted and Kristen, Emma thinks she finally can put a stop to all of the lies and get some real answers out of Sutton's mom. But does Emma really think that she could pry the truth out of a secret that has been hidden for almost seventeen years? Or will the secret Kristen has been hiding turn out to be not the biggest secret lurking around the Mercer house? Meanwhile, Sutton gets a glimpse into what Emma's life has been like when she is forced to pretend to be her sister while in Las Vegas.

The episode was rated 8.04 from 52 votes.

Emma is forced to go up against Neesha for Homecoming queen which causes problems with her and Sutton. Sutton and Emma both try to find more info on their mom while Alec and Ted try to hide it.

The episode was rated 8.11 from 64 votes.

With Sutton’s whereabouts still unknown and a threatening note delivered via Sutton’s signature packaging, Emma is feeling uncertain and on edge. So when she is invited to scout out the University of Texas’s tennis program, Emma surprises her dad and accepts the invite. Nonetheless, Emma can’t escape the fact that her twin may be gone for good. Meanwhile, Rebecca tries to help Char when her mom, Phyllis, has another drinking “episode.”

The episode was rated 8.23 from 57 votes.

On their seventeenth birthday, Emma's ideal life is about to come to an end when a vengeful Sutton makes her way back to Phoenix to get her life back.

The episode was rated 8.28 from 57 votes.

An unexpected engagement leads to a quickly-planned wedding, causing suspicions that something is awry. Sutton encourages Emma to show Kristin what they found in Rebecca's house. And Ethan makes a discovery that changes the game. Meanwhile, a shocking revelation leads to major repercussions in the Mercer household.

The episode was rated 8.35 from 66 votes.

Sutton is furious when she learns that Emma and Ethan kissed. Sutton and Emma continue to find more info about their mom. Meanwhile, Laurel becomes suspicious when Justin keeps breaking dates. Also, Mads learns Edwardo is moving and Char goes on a date with a boy she found in her pool.

The episode was rated 8.35 from 66 votes.