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.