Detective Wylie tells Amanda that Peter is really Peter Howell, a man wanted for his wife’s murder in Kansas City. Amanda travels to Kansas City and learns that Peter’s ex-wife Beth had terminal cancer. Beth’s mother says that while Peter was originally charged with a mercy killing, Beth’s recently-uncovered diary reveals that she killed herself because Peter couldn't do it. However, when Amanda visits Peter in jail, he confesses to killing Beth. Kimberly wakes from her coma but disappears from the hospital before making a statement to police. In Boston, Taylor McBride sees Peter in the newspaper and travels to Los Angeles, where she unsuccessfully tries to visit Peter in jail and makes plans to rent Jo’s apartment. Jane and Billy visit Richard’s house, where she is spooked by muddy footprints in the hallway. As Samantha moves into Jane’s apartment, Jane and Sydney find a shovel outside and Samantha later finds the trenchcoat Jane wore while burying Richard. Jane’s fears are allayed after the LAPD concludes that Richard ran off, but she is later terrified to find a load of dirt in her bed, as Richard smirks outside. Alison apologizes to Billy and agrees to another date, where she walks out on another marriage proposal. Later, Jake and Alison decide to lay low until they tell Billy about their relationship.

Jane saves Alison and Jake from the fire, but Sydney and Alison both question Jane’s role. Jane pretends to reconcile with Alison and Jake and later fails to convince Billy to help break them up. On her own, Jane throws a brick through Jake’s window and frames Billy, leading Jake to threaten Billy. Billy and Sam connect on another date. Sydney offers some of Sam’s paintings to Kyle, and things get flirtatious in the kitchen. After overhearing Peter and Amanda’s honeymoon plans, Taylor convinces Kyle to vacation at the same place. Amanda becomes increasingly suspicious as Taylor and Kyle spend time with Peter. Meanwhile, at D&D, Billy meets Craig, new employee and son of board chairman Arthur Field. While Billy tells Arthur that Amanda is with a client, Craig snoops around and finds a note from Amanda telling Billy that she's on her honeymoon. Arthur calls Amanda and demands that she return to D&D and fire Billy for lying, but she agrees to demote Billy and transfer his accounts to Craig. Billy overhears Craig and Arthur discussing plans to oust Amanda, but he refuses to tell Amanda after the demotion. Michael is turned off by Kimberly’s non-sexual touching techniques, but his fortunes turn when he meets fellow jogger Megan. Matt checks into rehab, where head doctor Dan Hathaway tries to break through to him.

When Jane’s boutique is robbed at gunpoint, Jane tries to take comfort in Sherry but finds her advice unhelpful. On Sydney’s urging, Mr. and Mrs. Andrews arrive in Los Angeles, where they express their love to Jane. After Jane announces her plan to return to Chicago, Sherry and Jane express their love for each other. Sherry accepts Ed’s marriage proposal. Jane says goodbye to her friends at the airport and leaves for Chicago. Michael signs the divorce papers after Kimberly and Megan invent a cover story for their meeting. In Las Vegas, Michael and Megan get married. After Kimberly refuses further medical treatment, Peter learns of her diagnosis and calls Michael to share the news. Jake becomes suspicious of Matt’s black eye and expresses his reservations to Billy and Sam. Dan asks Matt for a second chance, and on a double date with Billy and Sam, Matt shares that he's moving in with Dan. When Billy helps Matt move in and asks about the black eye, Dan overhears and pushes Matt through a table for failing to forcefully deny Dan's abuse. Peter visits Amanda at D&D, where she says he reminded her of Palmer and that she needs some time alone. Craig admits to Amanda that he witnessed Arthur’s murder of his grandfather. Alison runs into Sam while buying a pregnancy test. Sydney walks out on Carter due to his busy schedule and rejects an offer from his assistant Walter to pay her to stay.

After learning the severity of Kimberly’s illness, Michael says that he won't let her die alone and makes dinner plans with her. Michael asks Megan to keep their marriage private to protect Kimberly’s feelings. When Michael returns for dinner, he finds a suicide note. Elsewhere, Kimberly tries to jump from a pier but fails. Instead, Kimberly rents a motel room and summons Megan to share her plans to commit suicide in a Mulholland Drive car accident during the next storm. When Megan awakens to a storm, she forces Michael to drive to Mulholland and discloses her relationship with Kimberly, accidentally causing Michael to crash head-on with Kimberly. When Sydney asks Kyle to pay for Sam’s paintings in full to pay off boutique debts, Taylor makes the payment conditional on staying away from Kyle, which Sydney rejects. Later, Sydney is angry when Walter pays off her debts but changes her tune when Carter says he cares about her. Amanda blackmails Craig into a larger office, upsetting Arthur. When Arthur arrives to buy Amanda’s silence, he gets into a fight with Craig, leading to a heart attack which proves fatal after Craig stops Amanda from calling 911. Alison learns that she's pregnant and shares the news with an overjoyed Jake. When Jake tells Alison he inquired about a marriage license at City Hall, she feels frustrated but later accepts his formal marriage proposal. After finding abuse complaints in his record, Peter tells Dan to get treatment or face being fired. Later, after a drunken confrontation, Dan tells Matt that he plans to seek treatment.

Nick observes Taylor and Peter being intimate, but Kyle tells Nick that he trusts his wife. After seeing Nick’s truck outside Peter’s house, Taylor calls Peter to warn him, and he confronts Nick. When Nick overhears Taylor and Peter making phone plans to meet at the golf course, he follows them and photographs them making out. Later, Nick confronts Taylor with the photos and threatens to injure Peter if she doesn't end things, while separately giving Peter an ultimatum to stay away from Taylor. As Jake leaves Sutter’s Creek, Colleen warns him not to be stubborn with Alison, and David shares that he knows Jake is his father. After getting advice from Sam and Amanda, Alison tells Jake that she wants to take a chance with reconciling. Billy and Sam agree to stay out of other people’s business. Megan tells Kimberly that she married Michael, which angers Michael. At the hospital, Michael and Megan learn that Kimberly is in remission. While Michael tells Kimberly that he has to stay with Megan, Megan’s abusive former pimp Josh kidnaps her and holds her captive in her house. When Kyle saves Carter and Sydney from a mugger, Carter observes Sydney’s closeness with Kyle. After overhearing Sydney tell a co-worker that he doesn't make her feel anything, Carter breaks up with Sydney.

Amanda rents out an apartment to Craig. Taylor invites Nick over under the pretense of an apology but spikes his drink with morphine (provided by Peter), allowing Peter to break into Nick’s apartment and steal his photos of his golf course rendezvous with Taylor. When Nick offers to show proof of Taylor’s affair to Kyle, he finds the photos missing, causing Kyle to fire Nick. Later, Nick taps Taylor’s phone and records her talking dirty to Peter. Working with Nick, the next morning, Craig drives Amanda to Peter’s condo, where she sees Peter and Taylor making out through the window; Peter sees Amanda but ignores her. At Kyle’s, Amanda punches Taylor, and when a drunken Peter calls Amanda to ask how it feels to be cheated on, she sleeps with Craig. Josh calls Megan demanding $1,000. Kimberly, revealed to be working with Josh, tells him that she only wants Michael and Megan to divorce. While Megan goes to a hotel room to deliver the money, Josh tells Michael that Megan is still a sex worker and tricks him into calling the hotel room, where Megan answers. Michael walks out on Megan after Josh arrives to collect his money, but they later reconcile. Later, Josh makes plans with Kimberly to “accidentally” show a videotape of Megan having sex at a hospital conference. At the conference, Josh threatens to show the tape unless Megan resumes sex work. Kimberly tells Michael she accepts his decision to stay with Megan. Billy, Sam, Alison, and Jake realize that Sydney isn't on vacation with Carter.

Taylor is angered after Peter says Amanda saw them together and he failed to tell her. Kyle learns from his chef that Amanda punched Taylor and confronts Taylor over her false alibi. Later, Kyle visits Nick for more information, and he plays back the recording of Taylor and Peter’s phone sex. Angered, Kyle kicks Taylor out of the restaurant. Elsewhere, Nick demands $5,000 from Taylor in order to prevent an assault on Peter. In the hospital parking lot, Nick beats up Peter despite Taylor’s arrival. The next day, Kyle ends his friendship with Nick and sees him off at the bus depot, while Kyle rejects Taylor’s apology and kicks her out of the apartment. Amanda calls a divorce lawyer after Taylor taunts that she's moving in with Peter. Josh tells Megan that Kimberly is behind his plan and they plot to expose her. Kimberly signs off on Josh’s plan to have Michael catch Megan with a client. However, Josh double-crosses both Megan and Kimberly by setting up Megan with an undercover cop, who arrests her. After Michael begrudgingly bails Megan out of jail, Josh tries to push her back into sex work, threatening to beat her if she doesn't, like he did in the past. After the death of his brother Luke, Matt picks up his teenage niece Chelsea at the airport, who was detained for getting drunk on the flight. After the funeral, Matt and his mother are surprised when Luke’s will names Matt as Chelsea’s legal guardian.

Hilda’s lawyer, Harry, gives Sydney a taste of easy money when he pulls her parking brake during a car ride. Kyle hires Sydney as a waitress and they eventually share a kiss, but Kyle tells her he's not ready for a relationship. After seeing Kyle and Amanda together, Sydney decides to target D&D with a phony lawsuit. D&D wins an award for their ad for Kyle’s restaurant and Amanda announces a cocktail party to celebrate. At the D&D party, Harry removes the skid tape from a stair tread and Sydney intentionally throws herself down the spiral staircase. Michael and Megan decide to keep the beach house after Kimberly leaves it to them in her will. Kimberly appears to Megan in a dream and tells her to keep the beach house and temper Michael’s ambition. Michael tries to frame Peter with a conflict of interest but is unsuccessful due to Megan’s meddling. While initially reluctant, Taylor gives in to Peter’s fantasies about Beth. Jake and Alison take a road trip until their car breaks down. Stuck in a small town, they get married on an impulse and later toast champagne to their marriage, although Jake hesitates to serve alcohol to Alison. Chelsea’s mother Denise arrives, and while initially cold, they eventually open up about their love for each other and Chelsea moves in with Denise. Sam is upset by Billy’s suspicions about Jim but later gets a visit from LAPD asking for Jim’s whereabouts, as he has escaped prison.

Having accidentally deferred staircase repairs required by D&D’s insurer, Craig decides to be nice to Sydney so she will drop her lawsuit. Amanda and Kyle discuss their dreams at an art museum, and Amanda later offers to invest in Kyle’s jazz club idea. Michael’s younger sister Jennifer arrives in Los Angeles, having graduated from Boston College early. Jennifer bombs her D&D interview on purpose and lies to Michael that Amanda was rude to her, while Michael and Megan discuss the Mancini family. Colleen surprises Jake during a business trip to Los Angeles. Over dinner, Colleen asks Jake if David can call him occasionally as Alison frustratedly sips wine. Later, Jake reassures Alison that he loves her. Sam lies to Billy that Jim has left for Chicago. Later, she borrows Billy’s ATM card to give money to Jim to escape to Mexico. Peter snaps in anger at Taylor over her Beth impersonation before they have sex. After getting advice from Sam, Matt obtains a court order preventing Denise from taking Chelsea back to Europe.

Michael tells Megan about Peter’s rage epilepsy and abuse. Taylor intentionally wears a low-cut dress to a hospital fundraiser, angering Peter, which Dr. Shulman and Megan notice. When Dr. Shulman calls a meeting to remove Peter as chief of staff, Michael convinces him to resign and name Michael his replacement. Sydney forgives Craig and later accepts his marriage proposal. Elsewhere, Sydney and Craig form Sky High Advertising. Amanda reconciles with Kyle but suffers a panic attack as she loses control of D&D. Sam is arrested by LAPD on charges that she tipped off Jim to the sting, but she is released when Billy agrees to surveil her. Sam is angered by Billy’s questions about Jim and the revelation that LAPD has tapped her phone after Jim calls. After telling Jake that she won’t co-sign the deed for the Ojai restaurant, Alison works to intentionally push Jake away from her and towards Colleen and David. Chelsea flees to Matt’s after Denise comes home drunk with a friend who makes sexual advances on her. At the court hearing, Matt is questioned about his sexuality and Chelsea testifies about her mother’s friend. Peter learns from another doctor that he doesn’t have rage epilepsy and overhears Taylor calling Michael to ask about their next move. At the office, Peter pushes Michael through a glass window before taking Taylor on an impromptu getaway, where he attempts to push Taylor off a lighthouse before she shares that she is pregnant. Kyle and Amanda have an argument at the hospital, but when Matt tells Kyle that Amanda’s leaving for New York, he goes to see Amanda and they admit that they need each other. Sam rejects Billy’s apology. Jim robs Sam’s supermarket and forces her to drive the getaway car at gunpoint. Sam decides to drive to the wedding instead and loses control of her car, colliding with Sydney outside the church. Alison encourages David to ask Colleen to stay in California. With David’s encouragement, Jake asks Colleen to move to Ojai with him and she accepts. Alison moves to Atlanta for a new start. Denise tearfully tells Matt that he is the better parent and Chelsea should stay with him.