Massively overweight people set out to change their lives by healthily losing half their body weight over the course of a year. Personal trainer Jessie Pavelka challenges them to find the power within to turn their lives around. In an effort to continually inspire those who set out on the year long journey, Jessie often resorts to unusual methods and has to continually remind them about the harsh realities of their compromised health. Will they be able to achieve the mammoth task ahead and change their lives forever?