In the first episode, Joe meets four people battling their health, diet and body confidence: Natalie from Lowestoft, who doesn't want to be a fat bridesmaid at her brother's wedding; teacher Asa, whose bad-boy diet and fondness for a G&T has caused his weight to balloon; and Liz and Hannah from Abbey Wood, south London. Liz is battling her size and type 2 diabetes, and needs to learn how to change her eating habit; while student daughter Hannah wants to downsize for her graduation day.