A Russian Family Was Isolated for 40 Years, Unaware of WWII (2013)
If anyone is interested, the Lykovs were part of a group of 'Old Believers' (староверы) a sect of the Russian orthodox church. The primary reason many people who shared their faith fled major cities was because of Communist religious purges (an attempt to solve the problem of 'Religion is the opium of the people')https://en.wikipedia.org/wiki/Old_Believers