Thursday on AC360: Polygamist sect preparing for the end of the world?

A doomsday prophesy from jailed polygamist prophet Warren Jeffs has the attention of law enforcement officials.

“The consensus seems to be that (he’s) indicating that by the end of the year, the end of the world will be here,” said Sam Brower, a private investigator who has represented more than 100 former member of Jeffs’ Fundamentalist Church of Jesus Christ of Latter-Day Saints Church.

Law enforcement is on alert and monitoring the border towns of Colorado City, Arizona and Hildale, Utah, where Jeffs’ followers live.

Investigators fear mass casualties.  Not far from their minds are the end of the world visions from Jim Jones, David Koresh and other religious sect leaders over the years, which ended with mass deaths.

360’s Gary Tuchman traveled to the polygamist towns in question and tried to talk with residents to get their take on Jeffs’ end of times declaration.

It wasn’t an easy assignment.  Wait till you see what Gary encountered.

Plus, see why just one store in the community has really caught the eye of authorities.

Don't miss Gary's report tomorrow at 8 and 10 p.m. ET.

UPDATE Watch the report: