When Melissa throws a 1980s-inspired roller-skating party, Teresa takes the opportunity to mend fences with Margaret, not her brother; while Dolores draws boundaries with Frank and her new man, Jennifer struggles to move forward from past offenses.

Teresa kicks wedding planning into high gear and gets her invitations out the door; while Danielle learns of a secret meeting between Jennifer, Teresa and a scorned ex-friend of Margaret, Melissa tries to comfort Joe.

When drama at Danielle's mozzarella party eases after an unexpected olive branch from Teresa, all is seemingly fine until Louie and Joe go head-to-head; Teresa's daughters are upset after hearing Melissa and Joe's podcast.

After the guys night blowout, the divide between Teresa, Joe and Melissa is at a standstill; Frankie hits Dolores with hard questions about their shifting family dynamic; Rachel and Jen Fessler spill the tea on Jennifer Aydin.

Danielle throws Valentina a Barbie-themed birthday party; Rachel struggles with the fact that not everyone in her family wants another baby; Teresa and her daughters go wedding veil shopping; Jennifer Aydin warns Melissa to watch out for Marge.

Amid high tensions within her family, Teresa meets with her therapist; hostility continues to fester between Margaret and Jennifer following the events at Jen Fessler's brunch; Dolores' dad drops by for a visit with his daughter and Paulie.

Day one at the Jersey Shore is off to a wild start when the Gorga's luau takes a turn for the worse; Rachel drops an arsenal of gossip, angering Marge; Frank struggles with hurt feelings over Dolores' new boundaries.

Paul tells Dolores she needs to establish boundaries with Frank; Melissa and Teresa have differing opinions of Louie's involvement in their family issues; Dolores and Jennifer attempt to mend their friendship over lunch.

Before the Ireland excursion begins, Melissa hosts a Boujie Kidz pop-up for Danielle; Paul's family gives Dolores advice on how to handle drama in the Emerald Isle; once they've crossed the pond, Teresa's bachelorette party begins.

Celebrating Teresa's bachelorette party, the ladies live it up by hitting a pub with the locals on their first night in Ireland; tensions are reignited between Danielle and Rachel when the rat is let out of the bag.

Paul's family stops by the castle for a visit on the last full day in Ireland; Jennifer plans a hen party to celebrate Teresa; the ladies take part in an Irish whiskey tasting; Danielle confronts Rachel and Margaret over their treatment of her.

The ladies reflect on their Ireland trip with mixed emotions; Danielle wants to tell Melissa the gossip, but Jennifer hopes she won't until after Tre and Louie's vows; Melissa feels her relationship with Teresa has hit a wall and is ready to give up.

The Catanias go out for a celebratory family dinner, Paul and Brittany included; Frank continues to poke at Paul as Paul hints there may be more than just one wedding in the group's near future; Rachel and John share big news with Jaiden.

Everyone gathers at Paul and Dolores' house for their Irish Prohibition Party; the night of drinking, gambling and fun quickly goes downhill when a festering secret is finally revealed to Melissa; the Gorgas make a divisive decision.

Days after the explosive Prohibition Party, Teresa and Louie prepare to celebrate the wedding of their dreams; with news of Melissa and Joe not attending, Teresa and her family make the best of the circumstances and celebrate with chosen family.

Dolores dives deeper into her relationship with Paul; Danielle and Rachel's feud hits a new tipping point; Teresa makes shocking new allegations against Melissa, which places even more strain on the relationship between Gorgas and the Giudices.

Jennifer and Rachel continue their nose job jabs; Margaret opens up about her ex-husband's death; new revelations from Jennifer make Danielle question her friend's intentions; some startling claims against Louie cause an ugly battle to brew.

The New Jersey men join the stage for a ferocious faceoff; John and Frank speculate on Louie's involvement with a private investigator; Paul and Dolores tackle tough questions about their future; Teresa and Joe's tempers boil over.