On December 21, 1975, six terrorists from the Revolutionary Cells, led by Carlos 'The Jackal' forced their way into the conference room of the OPEC headquarters in Vienna and took seventy ministers hostage. A gun battle with the police ensued, and three people were killed. One terrorist was seriously wounded. The terrorists managed to escape to Algiers with a few hostages and the wounded man. There the hostages were released. The wounded terrorist was Hans-Joachim Klein. At the moment that Klein arrived in Algiers, he decided to quit terrorism.

"Klein, a German Case" - The inside story on international terrorism related by an ex-terrorist Hans Joachim Klein. Through interviews, archive footage and reconstitution that clarify certain events, Klein reveals the workings of international terrorism : the underground networks, his participation in the OPEC bombing in Vienna, training camps, the manipulating role played by certain governments and the cynicism of those underground shadows that terrorized the world for 20 years.

Tells the virtually unknown story of a Parisian banker who risks his life, career, and marriage to hunt down Gestapo commander Klaus Barbie; and only a few months later, plays a pivotal role in one of history's most daring hostage rescue operations. Cojot’s journey started during World War II in Nazi-occupied France; hit a fork on the road in 1975 in Bolivia, when he faced his bitter past; reached a climax in Entebbe, Africa, a few months later, when he played a key role in one of the 20th century's most daring hostage rescue operations; and concluded back in France in the 1980s, when he again confronted Barbie — this time, in court. Caught up in history's crosshairs, Cojot embodies the modern era’s vital dilemmas: how to lead a purposeful life and reconcile Western ideals of liberty, equality and justice with the bitter memories of WWII and the rise of global terrorism.