The family arrives in London for their first international vacation and learns more news about their ancestry. Tammy is pushed to her physical limits.
Lively sisters Amy and Tammy Slaton are both morbidly obese. As they continue their weight-loss journey, there are more ups and downs than ever!
Dr. Smith holds an all-sibling weigh-in, and the moment of truth is tough for some. With her recent makeover, Amy looks ahead to her new life.
Tammy needs a new place to live but finds more problems than solutions, and Amy makes a peace offering with some highly questionable ingredients.
A time for cheer is met with jeer as the entire family remains divided during Christmas, and Amy celebrates her first Christmas as a single mom.
Chris gears up for his upcoming appointment with a plastic surgeon and encourages Tammy to tag along. Amy whips up dinner for the whole family.
As the family reels from Amanda's news about moving to Florida, Chris comes up with a plan to convince her to stay. Amy and Tammy have a night out.
Tammy and Amy beef over their big night out. Chris and Amy see a genealogist and the results make the family consider taking a trip overseas.
Everyone prepares for London amid another flare up between Tammy and Amanda. Chris and Tammy are hoping to get approved for skin removal surgery.
The family deals with the aftermath of Amy's meltdown. Back home, Chris gets skin removal surgery. Amy has a risqué photoshoot.