'DWTS' finalist, Paralympian Amy Purdy was 'fighting for my life' with 2% survival odds at 19

Paralympic medalist and "Dancing with the Stars" finalist Amy Purdy says her life changed in a matter of hours at just 19 years old — when doctors told her she had less than a 2% chance of surviving a devastating illness.

Today, she’s sharing how she rebuilt her life after losing both legs below the knees in a new book aimed at helping others navigate life-altering setbacks.

In an exclusive on-camera interview with Fox News Digital, Purdy recalled the moment everything shifted.

"I...