1000-lb Sisters

Tammy and Amy attempt to renew their sister bond. The family has strong opinions about Amy's new hobby. Andrea makes a drastic decision about her relationship with Tammy. Chris is making gains in and out of the gym.

Tammy meets Andrea's friends in hopes they'll have a better reaction to her engagement than her family. Amy's riding high after getting good news about her weight loss, only to get shot down by her older siblings.

Tammy and Andrea take the first step toward wedding planning. Amy confronts the elder siblings about what went down on New Year's Eve. Chris and Brittany get shocking health updates.

While the older siblings try to mend fences with the younger ones, Tammy is less forgiving. Tammy and Andrea do a double date with Amy and Brian, but Brian's misgivings about Tammy make things awkward. Amy makes a big decision about her healthy journey.