The 1980s saw the peak number of nuclear warheads on the planet then the abrupt end of the Cold War. We are now back to worrying times with tensions rising between old foes Russia and the United States.

A paramedic becomes the patient as Canada worries about the spread of Severe Acute Respiratory Syndrome, or SARS.

Dr. Marshall Masters teaches a course in how to survive the inevitable destruction that Planet X will bring, which is scheduled to strike this year.

Family members that prepared for the end of the world left many of their loved ones in the lurch.

Michael Menkin uses his head to quite literally prevent alien invasions.

Was there a hidden agenda behind the 1968 release of the deadly VX nerve agent which resulted in the overnight death of more than 6000 sheep 30 miles outside of Area 52?

High-ranking government employees convene in May 2001 to discuss UFO sightings, including one which occurred over Alaska in 1986 by a Japan Airlines crew.

Nazi fugitive Herberts Cukurs challenges Anton Kuenzle, a Mossad agent to a shooting match in the jungle in Brazil.

Nazi war criminal Adolf Eichmann had many challenges to overcome in the execution of their plan.

Notorious Nazi Klaus Barbie eventually makes his way to Bolivia, where his expertise in torture and interrogation is used by the dictatorship of the South American country.

A personal account of how an ABC News team set up a meeting with former SS Officer Erich Priebke in Argentina to probe his past.

A twin reflects on her experience upon arriving at a concentration camp.

Nazi hunters Beate and Serge Klarsfeld receive a suspicious package at their home in Paris.

Despite a notice of his death in newspapers investigators continue to search for Touvier and discover that a network within the Catholic Church is sheltering him.

A mysterious (and drunk) man approaches prominent Nazi hunter Simon Wiesenthal at his office with an offer he can't refuse.

As part of their plans for expansion into and domination of the Soviet Union the Nazi hierarchy create the Einsatzgruppe, death squads that are tasked with clearing territory of Jews and Communists for settlement by Germans.