National Geographic: Situation Critical

One of the most dramatic police gun battles ever waged on American soil took place in Hollywood in 1997. Go inside the violent stand-off as the bandits fire over 1,100 rounds of ammunition and shoot nine police officers and two civilians.

In 2001 Afghanistan, at the start of the war on terror, a pro-American Afghan army double-crossed and imprisoned Taliban fighters. A violent uprising begins when the Taliban fighters overpower their guards, seize weapons and open fire.

In war-torn Sierra Leone in 2000, thousands of armed rebels lived in the jungle. When members of the Royal Irish Rangers were ambushed and taken hostage, the British government launched a risky and grueling rescue mission.

Two days after Apollo 13's launch, an oxygen tank on board burst and the situation became perilous—200,000 miles (321,868 kilometers) above Earth. Personal accounts bring one of the most famous space rescues in history to life.

In 1995, U.S. Air Force Cpt. O'Grady was patrolling the skies above war-torn Bosnia when a Serb missile hit his fighter jet. Upon impact, O'Grady was safely ejected, but his parachute sailed into hostile territory and gunmen were on his trail.

The 54th Sydney to Hobart yacht race turned into one of the worst sporting disasters in history. Almost 100 vessels faced brutal 90-mph winds and towering 60-foot waves. Hell on High Water revisits the tragedy and analyzes the ferocious storm that left six sailors dead.