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After almost a year apart, the group reunites to bury the past with the hope of starting anew; Brody attempts to reinvent his body and soul as he focuses on making amends with Kaitlynn post breakup.

Brody and Audrina explore new romances; Brandon takes his relationship to the next level; Heidi and Spencer struggle to agree on expanding their family.

The group's vacation takes a turn when Kaitlynn unexpectedly comes face-to-face with Brody's new flame; an unlikely connection begins to blossom.

Brody and Heidi's friendship is at a crossroads after dinner turns into an explosive argument. Brody wonders if Amber is right for him.

Heidi and Spencer are shocked to learn their behavior has become a topic of discussion. Audrina finds herself at a crossroads with both Brody and Sean; meanwhile Caroline makes a bold declaration about her true feelings for Kaitlynn.

The gang celebrates Kristin Cavallari’s visit to LA. Tensions brew between Heidi and Audrina. Justin and Jason strengthen their friendship. A good night turns into a good morning as Brody and Audrina finally put their chemistry to the test.

After Kristin grills Brody on his “sleepover” with Audrina, rumors swirl during a getaway to Lake Tahoe, making Kaitlynn feel left out. Caroline confronts Kaitlynn over their icy friendship, as Jason hears that Spencer is questioning his sobriety.

Brody and Audrina’s flirtation heats up. The war between the Pratts and Wahlers reaches a boiling point, while Brandon is left out in the cold by Dani’s chilly response to them moving in together. Audrina and Heidi find their friendship at a crossroad.

Heidi and Spencer seek help with their dire financial situation; a fling from Brandon's past threatens to derail things with Dani.

Kaitlynn’s decision to move in with her boyfriend leaves everyone wondering what’s really going on. Heidi and Spencer worry about the future of their business. Brandon starts to re-evaluate his relationship, while Audrina gets a wake-up call about Brody.

At Speidi’s wellness retreat, rumors swirl about Kaitlynn being pregnant. Brandon reveals shocking news about his relationship. The Wahlers struggle to find peace with the Pratts, who are distracted by some potential life changes of their own.

Kaitlynn breaks the news to Brody about her pregnancy but worries about him and Kris meeting face to face at the retreat. The Pratts and Wahlers finally tackle the feud that has divided the group. Justin learns the importance of maintaining connections