12x1 - Countdown to Meltdown

January 13, 2021

Ten singles get ready for the day they'll meet their mystery spouses at the altar; one bride falls apart when a gift from her husband takes her by surprise.

12x2 - Hello, Stranger

January 20, 2021

For one picky groom, his bride is not what he expected.

12x3 - Nice to Marry You

January 27, 2021

The two final weddings conclude, and all five couples meet the new families they've just married into. While some pairs feel destined for success, awkwardness abounds for others--especially when one groom has a shocking reaction to his new bride.

12x4 - Romance or Regret

February 3, 2021

Before heading on their honeymoons, the newly married couples have to meet their in-laws.

12x5 - Last Night Was Magic

February 10, 2021

On their Las Vegas honeymoon, four pairs of newlyweds learn more about their spouses; one couple deals with a secret that threatens to destroy the marriage.

12x6 - Defending Your Wife

February 17, 2021

The Vegas honeymoon continues for four newly married couples; couple number five deals with an unexpected shock, which leads to a major blowup.

12x7 - How Do You Know If You're in Love?

February 24, 2021

The newly married couples return from their honeymoon and move into their new homes together; the couples are questioned by Pastor Cal.

12x8 - Face to Face

March 3, 2021

The newlyweds meet with their friends and families for the first time since the weddings; one bride comes face to face with a stranger who will change her life.

12x9 - Three Little Words

March 10, 2021

The couples, who married as strangers just two and a half weeks ago, explore the potential to fall in love in the real world. And while some couples are inching closer and closer toward the "L" word, others find themselves barely past the starting line.

12x10 - Third Week's a Charm

March 17, 2021

Three weeks after being married at first sight, some couples struggle to start over while others face challenges that seem insurmountable. Luckily, Dr. Viviana is in town to offer help and hope.

12x11 - The Monthiversary

March 24, 2021

Approaching the first milestone, the couples are reminded of the commitment they made to a complete stranger one month ago. While some celebrate this achievement, others question their future with their spouses.

12x12 - Must Love Dogs

March 31, 2021

All five husbands have become dog dads since marrying their stranger spouses. Some take on the responsibility with love and excitement, but for others, it causes a severe emotional backlash.

12x13 - Unanswered Questions

April 7, 2021

With Decision Day less than three weeks away, the couples meet individually with Dr. Pepper and Pastor Cal to probe the serious questions they still have about their marriage.

12x14 - I Expected a Little Better

April 14, 2021

With only two weeks left until Decision Day, the four couples revisit their pasts with the hopes of solidifying their marriages for the future.

12x15 - Retreat Ready

April 21, 2021

With only nine days left to Decision Day, the couples travel to Hilton Head, S.C., for a break from their normal married lives, an adventure that could bring them closer together or expose the cracks in their foundations.

12x16 - Speak Now or Forever Hold Your Peace

April 28, 2021

With the gravity of Decision Day looming, each husband and wife engages in important conversations with their loved ones.

12x18 - Reunion, Part 1

May 19, 2021

12x19 - Reunion, Part 2

May 26, 2021

The Atlanta reunion continues as Chris' fight with Pastor Dwight concludes, Haley and Jacob awkwardly reflect on their marriage and the Experts weigh in on their matches.

12x20 - Where Are They Now?

June 9, 2021

Four months after decision day, the couples from Atlanta are back as both the newlyweds and the newly single give updates on how their lives have changed since the cameras went away.

12x21 - Hall of Fame

June 16, 2021

Hall of Fame: Jamie Otis shares some of his favorite moments of the show in celebration of 12 seasons and takes nominations for that “Married at First Sight” Hall of Fame, including categories such as “Favorite Fairytale” and “Least Likely to Succeed.”