Juliette and Kelsey struggle with resentment in their friendship; newly-engaged Madisson is forced to face her concerns about Ish's age; Brandon adapts to fatherhood; Chloe has reinvented herself, but people are skeptical.
Kelsey spreads a rumor about Juliette that makes their friendship worse. Chloe tries to make amends with Kelsey and Madisson. Brandon wants Camilla back. Juliette faces jealousy issues when Sam's friend shakes things up.
Chloe finds dealing with everyone's cynicism difficult; Madisson and Ish start to face the realities of their future; Brandon and Camilla start to move on with other people; Sam invites everyone to an island getaway.
Juliette and Sam's vacation is threatened by Jordana's flirtation; Brandon tries to rebound after Camilla, but no one is happy about it; everyone misses Chloe; Juliette and Kelsey try to navigate how to co-exist on an island.
Juliette is caught off guard when she finds out Kelsey's planning a photoshoot for her swimwear line. Brandon takes things with Jordana to the next level. No one is happy that Madisson invited Cara to the island.
As Juliette neglects her swimwear line, Kelsey's goals for her photoshoot fall apart; no one is interested in Cara's apologies; island life reveals cracks in Juliette and Sam's relationship.
Juliette and Kelsey's rivalry reaches the point of no return. The island is too small for Brandon, Jordana, Camilla, and Will, and the jealousies lead to a blow up. Joe and Stef confront Joe's fear of commitment.
Juliette's sudden absence leaves a void on the island; with Ish gone, Madisson starts to deal with the hard truths of their relationship; Cara finally makes amends with Kelsey and Garrett; Amanda and Tate grow closer.
Chloe returns and wants to fix the problems between Juliette and Kelsey. Brandon must figure out how to juggle his responsibilities and his new relationship with Jordana. Madisson has big wedding news to share with her family.
Juliette tries to make amends with Kelsey and finally starts to make progress with her swimwear line. Jordana wants more from Brandon, and he's not sure if he can commit. Sam wants to take the next step with Juliette.
When Juliette and Kelsey both attend Madisson's party, everyone has questions, especially Chloe; Chloe wants to reunite with Cara, but Cara is skeptical; Amanda learns that Tate has some secrets.
Juliette wants to make amends with Kelsey, who isn't interested in restoring their friendship; Brandon is unhappy and wants to pursue Camilla again; Amanda doesn't know what to do about Tate after he breaks her trust.
Juliette is worried about her relationship as she considers moving out of Sam's house; Chloe has a new boyfriend to impress, but issues with Jordana and Cara test her; Brandon apologizes to Camilla for his past indiscretions.
As Juliette takes steps to move out, her relationship with Sam worsens; Kelsey is lonely; Chloe worries that the group's drama will scare Chris away; Jordana's art show reveals her deeper side.
Juliette and Sam's tension finally reaches its breaking point. Madisson is overwhelmed when she begins to prep for the wedding. Brandon thinks he's ready to hang out with the group again, but he's concerned about seeing Jordana.
Juliette is shocked that Sam has moved on so quickly after their breakup; the whole group chooses sides between Juliette and Sam, especially Jordana and Cara; Kelsey wonders about life outside of Florida, but Max is hesitant.
Juliette wants to get over Sam while she's in Paris, but it's not as easy as she hoped. Sam introduces Meghan to the group among unaccepting friends. Kelsey and Will are concerned about Garrett and Kenna's relationship.
Juliette thinks she's over Sam, but seeing him move on with other women changes everything; Brandon struggles with figuring out custody arrangements with Delainey; Cara is frustrated that Michael hasn't said he loves her yet.
Juliette is hesitant about rekindling things with Sam; Brandon juggles his son, career, Delainey, and a new relationship; Lexie is stuck in the middle of supporting her best friend Juliette and her boyfriend's best friend Sam.
Juliette's friends disapprove of her getting back with Sam and she must make a difficult decision; Sam and Chloe have conflicting ideas about what's best for Juliette; Chloe contemplates taking the next big step with Chris.
Juliette's mixed messages to Sam reach an all-time high when an incriminating video leaks of her with a new guy, and she jets off to L.A. to work on her swimsuit line and visit Madisson.
Kelsey and Max aren't on the same page regarding where they'll spend their futures; Amanda is shaken when her father suffers a health scare; and Juliette and Sam butt heads at a pool party.
Tension between Team Juliette and Team Sam threatens to disrupt Madisson's wedding; Juliette starts to figure out the next big step for JMP but is overwhelmed by the pressure; Sam contemplates a fresh start elsewhere.
Juliette and Sam must co-exist around each other's new partners; Madisson and Ish get married, but the group can't stay civil on their big day; The girls rally around Madisson after an unthinkable tragedy.
Rachel Lindsay chats with the Siesta Key gang about Madisson's big announcement, Chloe's desire to change her ways, Brandon's role as a dad, and Kelsey and Juliette's memorable fight.