Cameras catch the highs and lows over the course of a year as nine dangerously overweight individuals try to shed the pounds before it's too late. First up is 40-year-old Julie.

Jack, 25, weighs in at 29 stone and could be the poster boy for today's obesity epidemic. With Jessie and the team's help though, Jack is determined to shift those pounds.

Liz's weight problems have spiralled out of control, and she currently stands at 34 stone. Can Jessie and the team help the 38-year-old conquer her food demons once and for all?

Jessie and the team come to the aid of 32-year-old Claire, who weighs 26-and-a-half stone. Things haven't been simple for Claire, and her food issues stem from a painful place.

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A&E nurse Bev, 51, has tried everything to lose weight, from diets to surgery, but nothing has worked. Now 27-and-a-half stone, Bev turns to Jessie and the team for help. 

The prognosis isn't looking good for Sandy. He weighs 34 stone and, unless action is taken, an early death awaits. Can Jessie and co help Sandy get his life back on track?

Twenty-nine-year-old Lee is an inspiration for bigger people and is determined to lose weight. Can Jessie and the team help him end his unrestrained love affair with food? 

Stepping off the scales, the powerful documentary series reaches its conclusion. Find out if Jessie and the team can work their magic one last time on super-sized Sharon.