A Canadian woman is taking part in a remarkable study to help doctors learn how to stop multiple sclerosis in its tracks. But it's a dangerous and daring protocol that could risk her life. Dyan Dixon has suffered from MS for more than 10 years. It's a cruel disease that appears to cause the immune system to go on the attack without warning. There is no cure. But Dr. Freedman is leading a Canadian team undertaking a bold experiment in the battle against MS. He thinks there may be a way to arrest the disease; patients might not get better but at least they wouldn't get worse. Now Dyan must make an agonizing decision: Will she continue to let her body deteriorate or will she join Dr. Freedman in his experimental new study to see if he can test his theory?