The Brineys, Snowdens and Alldredges are in various stages of seeking a sister wife; with the arrival of their third wife, the Brineys all move under one roof; after a breakup, the Snowdens begin their search; the Alldredges seek a third.

After meeting someone online, the Snowdens worry about how their family will respond; the Alldredges decide whether or not to move forward with Melina; the Brineys adjust to their new wife with impending legal issues.

The Alldredges and Snowdens hope to finally meet their online potential sister wives face to face; tensions grow among the Briney sister wives, April and Auralee, and Angela Briney wonders what she has gotten herself into.

April and Drew Briney celebrate a milestone anniversary while Angela and Auralee tend to the children; the Snowdens forge ahead with potential sister wife Joselyn; the Alldredges regroup after Melina doesn’t show up and focus on Vanessa’s pregnancy.

Vanessa's pregnancy is in jeopardy and she faces a life threatening surgery. The Snowdens meet up with Joselyn to see if she will come clean about sleeping with Dimitri. The Brineys go camping in hopes of easing the tension amongst the three wives.

The Alldredges' world is rocked by an unexpected phone call. Ashley Snowden proposes a new potential sister wife. The Brineys get some shocking news that threatens to tear them apart.

April struggles with leaving Utah and threatens to tear the Briney family apart; the Snowdens decide whether to forge ahead with potential sister wife Jakira; the Alldredges find out Melina's decision.

The Snowdens and the Alldredges court a new sister wife; elsewhere, young newlyweds, the Winders, still have a plural marriage in secret; the McGees seek their first sister wife.

Vanessa experiences life as a Snowden; the McGees tell their sons they want to seek a sister wife; the Winders go out in public as a trio for the first time; the Alldredges wonder if their potential sister wife, Jennifer, will show up on their date.

The Alldredges’ potential sister wife throws their courtship off track; Vanesa throws a curve ball at Dimitri on their date; the McGees move out of their camper for more space and privacy; the Winders take a public stand for their plural lifestyle.

Surprises are in store when Jeff tells his wives about Jennifer's abrupt exit; Dimitri decides to introduce Vanessa to Ashley's mother without telling her; the McGees video chat with a potential sister wife; Sophie Winder's family visits.

The McGees set ground rules for courting and intimacy and ask a potential sister wife to meet in-person; the Winders launch their online dating profile; the Snowdens decide to make a move that could impact Vanessa's life in a serious way.

The Snowdens arrive in LA and hope their relationship with Vanessa will still work under one roof; the McGees nervously prep for Brandy's arrival; the Alldredges ask Jennifer to come for a visit; the Winders find a possible interest online.

Vanessa and her sister clash over her choice to join a polygamist lifestyle; the Alldredges prepare for Jennifer's visit until Jeff gets a strange text message.

A series following three families in various phases of adding a new sister wife to their lives.

The Alldredges are shocked by Jennifer's mysterious behavior while the Winders finally video chat with a potential sister wife. Paige questions if this lifestyle is what she really wants, and the Snowdens prepare for Dimitri and Vanessa to be intimate.

The Snowdens look toward the future after Dimitri and Vanessa become intimate, but Ashley surprises them with some news; Brandy reunites with the McGees; the Alldredges are shocked by the latest Jennifer news; the Winders discuss their future.

Ashley and Dimitri Snowden are just a few days away from marrying Vanessa, but when their three families with their three big personalities all get together, everything can go wrong.

The Alldredges, Snowdens, McGees, and Winders all meet for the first time to answer tough questions about each of their journeys in plural dating and take a deep dive together into the season’s juiciest moments.

The Snowdens have a new girlfriend; the Merrifields take drastic measures to bring their Brazilian bombshell fiancee into their family; after their first wife left, the Joneses are ready to seek again; the Clarks have turmoil in their plural kingdom.

Tosha makes a bold confession to her mom. Despite their family's concern, The Merrifields forge ahead with their plans for potential sister wife Roberta. Vanessa and Kaleh clash over their differences. The Snowdens' new girlfriend reveals a secret.

The Merrifields head to Mexico to reunite with fiancee Roberta. The plot thickens as the Snowdens reveal a new twist in their world. Rather than search online, the Joneses go out on the town. Life in the Winder home is looking very different these days...

The Snowdens welcome a new girlfriend! The Merrifields scout wedding venues with Roberta, leaving Dannielle to feel like a third wheel. The Clarks work on their relationship with explosive results. The Winders' family members question their lifestyle.

Roberta makes a shocking confession to Dannielle. The Joneses navigate dating during the pandemic. The Clarks try to make sense of everything that happened with Kaleh. The Snowdens continue to get to know Tayler and wonder if she might be the one.

Sister wife Roberta gives Garrick an ultimatum. The Snowdens make a big decision about their potential sister wife Tayler. The Joneses prefer to meet people in person but set up an online dating profile to try something new. Sophie Winder goes into labor.