CONTROVERSIAL NEW RELIGIOUS GROUP

Plus: "Body Wars: Fit Mom Swap" On "Nightline Prime" Airing Saturday, April 5 on ABC

"Nightline Prime" airs SATURDAY, APRIL 5 (10:01 - 11:00 p.m., ET) on the ABC Television Network. This week's reports include:

· Church of Wells -- "Nightline Prime" follows families searching for their children who left home to join a controversial new religious group in Texas. The Church of Well's manifesto of "Doctrine of Judgment" urges its members, mostly in their twenties, to condemn and sometimes even break from "unconverted parents." Parents say the videos of their loves ones, posted on the Church website, show sons and daughters whose submissive behavior they don't recognize. Dan Harris heads to Wells to talk to the members and track down the church's elusive young leaders.

· Body Wars: Is Fit Mom a Fat Shamer? -- Super "Fit Mom" Maria Kang set off a fire storm with her "No Excuses" blog challenging new mothers with getting into tip top shape. "Nightline's" Paula Faris, on her first day back to work from maternity leave, spends a day with the Fit Mom as she consents to go meet her critics, a group of Kansas City women who have accused her of fat shaming and responded with their own online "I Don't Need an Excuse" campaign. "Nightline Prime" brings the two sides together in a "life swap" to walk a proverbial mile in each other's sneakers. Paula Faris reports.

"Nightline Prime" goes inside the most provocative stories of our time, utilizing the newest technologies to put viewers in the middle of stories as they unfold. The new program puts the latest small, agile cameras out with journalists embedded at the center of the stories they are reporting, enabling its teams to go farther, closer and deeper than previously possible.

Jeanmarie Condon is executive producer and David Scott is senior broadcast producer on "Nightline Prime."