As summer approaches, tensions are on the rise in the Valley; Jax and Brittany continue picking up the pieces from their separation; Jesse and Michelle juggle co-parenting their daughter, Isabella, while starting new relationships.

Jax's life comes under tough scrutiny as he's confronted about his recent behavior; he finally admits he's at rock bottom and elects to seek professional help; Zack tries to find stability in his friendship with Brittany.

Michelle and Jesse's divorce takes an ugly turn when a rumor about Michelle begins to spread; Brittany tries to put the pieces of her life back together after Jax checks into a mental health facility; Luke reveals a major life milestone to Danny.

Jesse and Kristen arrange a getaway to Santa Barbara hoping everyone can find peace and heal; Zack and Janet sit down for a heart-to-heart conversation; Jax, still struggling with his emotions, makes his presence felt in Santa Barbara.

The group's Santa Barbara retreat continues to unravel; emotions escalate between Jesse and Michelle leading to an explosive argument; Nia is blindsided when Zack tells her that some of the group has been talking behind her back.

The Santa Barbara trip comes to a dramatic end as Nia fights back against Brittany, Jasmine and Janet; back in L.A., Jesse seeks guidance as he hopes to rebound from his wine country fight with Michelle.

Jason confronts Danny about his drinking as Danny looks to make amends with Jasmine and Melissa; Kristen attempts to defend the Bookos and in the process, a rumor about the Capernas emerges.

Tensions boil between Jasmine, Janet and Jason; Zack starts to realize that his friendship with Brittany has shifted; the rumor Kristen started continues to wreak havoc in the friend group; Brittany uncovers a shocking breach of privacy by Jax.

Kristen and Luke's housewarming takes a turn; Brittany prepares for Jax's return by meeting with a divorce attorney; Jasmine and Melissa try to mend things with Jason and Janet; Danny is accused of overindulging again.

Jax becomes upset when he finds out about the party at Britt's; the guys take Jax to a dinner that leads to a confrontation between Jason and Danny; the tension between Nia and Janet comes to a head; Jax is blindsided by a special delivery.

Luke finalizes plans for a trip to Hawaii where he plans to propose to Kristen; Janet, Michelle, Kristen and Nia butt heads during a girl's night out; Jesse confronts Aaron about the timeline of his relationship with Michelle.

Unbeknownst to Kristen, a fishing trip Luke planned is where he plans to pop the question; Brittany feels hurt and left out when she learns she isn't a part of Kristen's proposal; Janet threatens to leave the trip early.

Jax spoils Kristen and Luke's engagement after Brittany inadvertently reveals the news to him; Kristen and Zack are fed up with Brittany always choosing Janet over them; all hell breaks loose when Janet and Kristen reach their breaking points.

In the wake of the cruise from hell, Janet struggles with insults Kristen threw at her; Danny and Nia look at a house as they get closer to their decision on having a fourth child; Jax and Brittany have an argument when discussing co-parenting.

Jesse and Michelle experience a breakthrough in their relationship; Kristen comes to terms with her fertility journey; conflict takes the spotlight at Michelle's Zen party; Jax comes clean about his battles.

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