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Tammy announces her engagement to the family and reveals that her big day is only two weeks away; Amy takes up maid of honor duties; the family wonders if there's another reason Tammy is rushing down the aisle.

1000-lb Sisters

Walkin' on Eggshells

Tammy wants to come home, but a setback causes a major blow-up between her and the family; when a new man enters Tammy's life, all bets are off; Amy feels the stress of motherhood; Amanda contemplates a new chapter.

Forbidden Fruit

After years of struggling, Tammy finally has her weight loss surgery, but things are not as straightforward as expected; Amy meets with Dr. Procter and gets an ambitious weight loss goal.

Proof Is in the Pudding

Amy feels from giving birth and finding out Michael has COVID-19; after 20 years, Chris gets back on the horse; Tammy is almost at the finish line for surgery approval, but worries she won't pass her final assessments.

A Lot of Cooks in the Kitchen

After doing the unthinkable, Tammy tells Dr. Smith that she met her weight goal and gives her family big news; Chris serves up an unusual main course at a family gathering; the family worries when Amy's C-section takes much longer than expected.

Greatest Thing Since Sliced Bread

After finding out Tammy's been robbed, Misty and Amanda visit to break the news in person; while Chris pushes ahead toward his surgery goal, Amy has a setback and is rushed to the ER; with her sisters by her, Tammy faces the results of her weigh in.

Icing on the Cake

Tammy hits a tipping point at rehab; more bad news from back home sends her into a downward spiral; Chris gets a reality check from Dr. Smith; the family says goodbye to a beloved family member.

I Don't Want to Taco Bout It

Tammy's seemingly good progress inspires Amy to visit, reuniting the siblings for the first time in months; Amanda begins a new chapter in her life; Amy learns she's at risk of serious complications if she doesn't get her eating under control.

Can't Have Your Cake and Eat It Too

Having survived yet another brush with death, Tammy recovers at rehab, but a new scare threatens her life; the family adjusts to life without Tammy; Amy's big surprise stuns everyone.

The Sweet and Sour Life

Tipping the scales at over 1,000 pounds combined, the Slaton sisters try to lose enough weight to qualify for and undergo life-changing bariatric surgery and pursue their dreams.

S4 E4 | Icing on the Cake

E9 | Walkin' on Eggshells

E8 | Forbidden Fruit

E7 | Proof Is in the Pudding

E6 | A Lot of Cooks in the Kitchen

E5 | Greatest Thing Since Sliced Bread

E4 | Icing on the Cake

E3 | I Don't Want to Taco Bout It

E2 | Can't Have Your Cake and Eat It Too

E1 | The Sweet and Sour Life