Alex, the leader of the pack, finds himself stuck in the middle of a love triangle between Madisson, his high school sweetheart, and Juliette, his old flame from last summer.

Chloe copes with a huge blow from one of her best friends over Siesta’s heartthrob, Brandon.

Garrett’s jealousy builds as Alex and Kelsey get a bit too friendly on the boat. Kelsey welcomes the attention and wonders whether she sees a future with Garrett. Chloe tries to face up to her destructive behavior.

Alex deals with the repercussions of his fling with Amanda and debates whether or not to tell Juliette. Madisson steps away from the battle for Alex and catches Brandon’s eye. Kelsey and Garrett grow further apart.

Rumors catch fire about Kelsey and Alex in a hot tub just as Garrett and Kelsey reach a crossroads. Madisson and Brandon strike a spark while Chloe considers her relationship with Amanda.

The crew visits Bimini for some days of fun; drama rapidly spreads when evidence of Alex and Kelsey's indiscretions come to light; jealously overwhelms Juliette; Madisson and Brandon continue to get comfortable with each other.

Kelsey continues to weave a messy web between Alex and Garrett. Juliette reevaluates her relationship with Alex. Chloe takes a break from the group. Madisson receives a proposal from her ex that casts a cloud of doubt on her future with Brandon.

Garrett is in denial about Kelsey and Alex; Juliette flirts with Garrett, and considers spilling the beans; Pauly spends the night in jail; Chloe throws a party.

Things heat up with Juliette and Garrett just as Alex starts to pull away from Kelsey. Alex tries to make things right with Chloe while Brandon and Madisson take their relationship to the next level. Pauly catches a break with a major gig.

Juliette's cruel intentions take a turn; Kelsey's bad decisions catch up with her; Madisson tells Alex how she feels; Pauly pushes Chloe.

Alex gets in a bar fight that leaves his jaw wired shut; and Juliette questions Garrett’s loyalty after a questionable night with Kel.

Tensions reach an all-time high at Chloe's birthday. Madisson confronts Canvas, Garrett is unable to stay away from Kelsey, and Juliette takes comfort in the familiar arms of Alex.

Rumors emerge about Juliette and Alex; Kelsey and Madisson head off to New York to pursue their careers, but a rude awakening awaits them; Brandon makes a choice that forever changes the course of Bradisson.

Juliette reveals her rekindled relationship to the group; Kelsey and Garret continue to bond; Tarik opens up about his sexuality; Brandon struggles with his infidelities as Chloe and Canvas dig for the truth.

Paige breaks the news to Madisson about her unexpected romance with Canvas; Brandon is devastated when Madisson brings her new squeeze Ben to Alex's housewarming party; Alex and Hannah's feud comes to a head.

Brandon makes a final emotional play to get Madisson back; Kelsey reveals her feelings to Garrett, only to be blocked by an unforeseen obstacle; Juliette and Alex have an explosive fight that leaves JAlex's future uncertain.

Juliette takes on a daunting work assignment, Chloe's meddling threatens her friendship with Madisson, and Kelsey's future with Garrett is jeopardized by her ex.

Madisson distances herself from the group, Alyssa's mom worries about her daughter's relationship, and unresolved feuds take center stage at Chloe's Friendsgiving dinner.

Brandon faces a decision about his future, Madisson surprises her friends and family with an announcement, and Kelsey questions Juliette's intentions.

Jeannie Mai hosts as the Siesta Key cast virtually looks back at breakups, makeups and blowups from Season 3, and the group shares relationship updates, shocking secrets and more.

Brandon embraces fatherhood, Chloe reinvents herself, Madisson worries about the age difference in her relationship, Amanda holds a film screening, and Kelsey confronts Juliette.

Chloe tries to repair broken friendships, Kelsey shares a joke that creates a bigger rift with Juliette, and Sam commissions a painting that leaves everyone speechless.

Madisson considers a prenup after a discussion with her father, Camilla and Brandon rehash their difficult past, and Chloe struggles to find support from Amanda and Juliette.

Camilla's flirting leads Brandon to a confrontation, Juliette works out the details of her swimsuit line, and Madisson's anxiety rears its head as everyone prepares for an island vacation.

Chloe makes a shocking announcement, Camilla confronts Brandon about hooking up with Jordana, Amanda is caught between Juliette and Kelsey, and Madisson invites Cara to the island.