In anticipation of the 25th anniversary of the historic nuclear accident at Chernobyl, filmmakers and scientists set out to document the lives and genetics of packs of wolves and other wildlife thriving in the 'dead zone' which still surrounds the remains of the reactor.

CIRC # 500\Originally broadcast as an episode of the TV series Nature on Oct. 19, 2011. DVD release date: Nov. 29, 2011.