Gary's health has begun to suffer because of his weight, but his odds for surviving the surgery are 1-in-10.

Daniella's 490 pound brother, Martin, wonders if he will follow in his sister's example, as she recently had gastric bypass surgery with amazing results.

Bed-bound Amanda weighs over 350 pounds; her surgery transforms her life, as well as the lives of her family.

At 350 pounds, 23-year-old Rachel turns to the knife in the hope that it can give her the body she has always dreamed of.

After trying every diet under the sun; nothing has worked for Kathleen; she tries to fund the operation without help from the National Health Service.