1000-lb Sisters, Heavy Hoarders

Tammy makes a life-altering decision. Amy finally gets a taste of the life she's always wanted, and an emergency surgery has repercussions for Chris.

Tammy is back from rehab, and Amy comes to a drastic decision regarding her sister. With his bariatric surgery on the line, Chris tries to shed weight.

Amy is upset that Tammy's new nurse isn't pushing her enough. Tammy has started slacking, and the family worries about what could be the cause.

Amy must confront some demons from her past. Plus, Tammy admits to a few cheat days just before her first doctor's appointment since rehab.

Chris reprimands Amy for enabling Tammy. The family worries Tammy's new boyfriend is leading her down the wrong path and Amy's meet and greet idea has problems.

Tammy must see a new therapist. Amy wants to lose her excess skin but gets bad news at the surgeon's office. Meanwhile, Chris faces the scale.

Chris faces the ultimate weigh-in to get approved for bariatric surgery. With Tammy's weight at a standstill, Amy, and Michael make a life-altering decision.

While Chris improves after his surgery, Tammy gets discouraging news. The family plans a vacation together, but concerns rise about Tammy's mobility.

The family vacation starts off terribly when Tammy refuses to enter the cabin. Chris hopes he’s lost enough weight to fulfil a life-long dream.

After a tense family vacation, Amy returns home and reveals a big secret. Tammy makes a decision that could ruin her weight-loss goals.

As Tammy’s partying phase takes a turn for the worse, Amanda tries to get through to her sister before it’s too late. Amy and Michael finally move out of the duplex.

While on the road with Chris, Tammy’s health hits a dangerous low point. Plus, Amy sees a paediatric doctor and faces some difficult truths about Gage’s diet.