In just two years, the government debt crisis that began in Greece had infected all of Europe - and maybe soon, the world.Now the nations of the euro zone face a stark choice - repair the currency block at great cost or dissolve the euro and take a trip into the unknown.In this documentary, Wall Street Journal editors and reporters examine the origins of Europe's debt crisis and why it spread with such ferocity to engulf much of the continent and threaten the entire world.