S3, EP12 "Never Say Never"
Amy sees a pediatric dietitian and faces some difficult truths about Gage's diet; Dr. Smith makes a house call and confronts Tammy about her partying lifestyle; while on the road with Chris, Tammy's health hits a dangerous low point.
S3, EP11 "End of an Era"
Amy and Michael finally move out of the duplex; Tammy's partying phase takes a turn for the worse; Amanda tries to get through to her sister before it's too late; Amy's in for a rude awakening at her annual checkup with Dr. Procter.
S3, EP10 "Moving on Up and Partying on Down"
After a rift on the family vacation, Amy returns home and drops a bomb on Tammy; while Amy focuses on her new life, Tammy makes a decision that takes her even further away from her weight-loss goals.
S3, EP9 "Smoky Mountain Meltdown"
The family vacation starts off terribly when Tammy refuses to enter the cabin; Chris hopes he's lost enough weight to fulfill a life-long dream.
S3, EP8 "A Very Slaton Vacation"
While Chris makes progress after his surgery, Tammy gets discouraging news; Amy plans a unique bash for Tammy's 35th birthday; the family excitedly plan their first vacation together with all five siblings, but concerns rise about Tammy's mobility.
S3, EP7 "Moment of Truth"
Chris faces a weigh-in to get approved for bariatric surgery; with Tammy's weight at a standstill, Amy and Michael make a life-altering decision; the family's fears about Tammy's choice in partners are realized.
S3, EP6 "Man vs. Scale"
Tammy must see a new therapist, but things don't go the way she'd hoped; Amy wants to lose her excess skin, but she gets bad news at the plastic surgeon's office; Chris faces the scale; if he's below 400 pounds, his surgery is on.
S3, EP5 "Pushed Too Far"
After Tammy's bad doctor's appointment, Chris comes down on Amy for enabling her sister; the family worries Tammy's new boyfriend is leading her down the wrong path; Amy's idea of having a meet and greet to help Tammy has its own set of problems.
S3, EP4 "Heavy Hoarders"
When Amy tries to get her house in order, she must confront some demons from her past; Tammy admits to a few cheat days just before her first doctor's appointment since rehab; Chris steps on the scale that could change his life.
S3, EP3 "Tammy's New Squeeze"
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; Chris and Tammy clash when he confronts her about the new man in her life.
S3, EP2 "Goodbye Freedom"
Tammy is back from rehab, and Amy kisses her freedom goodbye as she comes to a decision regarding her sister; with his bariatric surgery on the line, Chris tries to shed the weight he's gained but is shocked when he and Tammy step on the scale.
S3, EP1 "Welcome to Rehab"
With her weight spiraling, Tammy makes a life-altering decision; Amy finally gets a taste of the life she's always wanted, but, unfortunately, it's short-lived; an emergency surgery has repercussions for Chris.
S3 "The BIG Game"
Going behind the scenes as Amy faces the truth about Gage's diet and Dr. Smith confronts Tammy about her partying lifestyle.