Dance instructor Adrianne Haslet-Davis lost her foot in the Boston marathon bombing but is determined to move forward. She and her husband, Air Force Capt. Adam Davis, told Anderson Cooper what happened to them immediately following the blast, and why they're so optimistic about overcoming the challenges of Adrianne's amputation.

The 32-year-old crawled on her elbows to find safety in a nearby bar after the explosions. Seeing the severity of her injury, she and her husband, with the help of another person, used belts as tourniquets to try to stop the bleeding.

Adrianne discovered her foot was gone after she awoke from surgery and told her mother that her foot felt numb. She said it was difficult to find out that she was experiencing phantom pains because she no longer had a foot on her left leg.

Over the past week she's processed the horror of that day and the devastating effects, but is determined to dance again. Adrianne has also said she's interested in participating in the marathon next year.

"I don't want this to be the end. So whether it's, you know, running the marathon or walking the marathon or crawling the marathon and being the last one across. I'm OK with that ... But I am defiant and I want to come out stronger," she said.

Adrianne has also accepted another difficult challenge: teaching Anderson to dance. Watch the interview for more of her remarkable story of strength and grace.

If you'd like to help Adrianne and Adam, find more information on http://www.gofundme.com/AdrianneFund