The international television network will examine the process of becoming a saint in the Roman Catholic Church.
It is scheduled to be televised Sunday, March 4, at 8 p.m., 10 p.m., and 2 a.m.
CNN Producer Jen Christensen led the reporting team from CNN's Special Investigations and Documentary Unit.
She made three trips to Saint Mary-of-the-Woods with photojournalists to research and record the video.
Correspondent Drew Griffin, an Emmy award winner, did an extensive interview with Sister Marie Kevin Tighe, who served as vice postulator and promoter of the Cause for Saint Mother Theodore Guerin.
"This is Heaven on Earth. I've never been to such a beautiful place, not just the land, but the spirit here is unlike any place I've ever seen," Christensen said as she was wrapping up her work on a recent visit to Saint Mary-of-the-Woods. "I've been very fortunate to travel the world and to see the best and the worst of humanity. But this is singular. It makes me emotional. That's how much I really love it here."
Christensen also talked abut getting to know Saint Mother Theodore from a deeper perspective.
"I am struck by the determination that had to go into this cause. It's clear to me that this woman was a saint without the Vatican's blessing. I am so impressed with the dogged determination with the people here who want the rest of the world to know her story," she said. "I think the sisters here have the secret to life, the secret to happiness. I think Mother Guerin set the tone for that in all of the right ways."
Saint Mother Theodore Guerin and five companion sisters came to the United States from France in 1840, arriving first in southern Indiana and traveling through Vincennes and the forest terrain in western Indiana to Saint Mary-of-the-Woods.
Within a year, Saint Mother Theodore opened an academy, now known as Saint Mary-of-the-Woods College, which is the oldest Catholic college for women in the United States.
Pope Benedict XVI canonized Saint Mother Theodore Oct. 15, 2006, in Rome.