Two bombs explode in a three-story office building. Also: a utility worker's mishap at a dam.
A hot air balloon crashes into a radio tower; tsunami survival stories from Thailand; a man falls into a frozen pond.
Rescuers respond to a boating accident, then need to be rescued too; 9/11 survivors discuss the collapse of the World Trade Center; a race-car driver dodges a fiery situation; a news helicopter tries to aid a rescue helicopter.
A volcanic eruption; a plane's crash landing in a lake; a BASE jumper's mishap. Also: a man is removed from his car before it explodes.
A magician's trick goes awry; a snowmobiler causes an avalanche; a deadly hurricane hits the U.S.; a sailor gets sucked into a jet engine.
An urban gunfight erupts outside a North Hollywood bank; a water-main break traps motorists in Maryland; a bridge spanning the Mississippi River collapses; a great white shark rips apart a cage containing scuba divers.
Terrorists seize a hotel in Mumbai, India; a paraglider's wing fails, resulting in a crash; flooding carries a school bus away with three elementary-school children on board.
A pregnant skydiver has a mishap; a Kansas town is leveled by an F5 tornado; fire imperils a crane operator.
An earthquake damages a hospital, requiring an evacuation; an air-show stunt goes awry.
The 1989 earthquake in California causes a double-decker freeway to collapse; a car careens into a flood control channel during a rainstorm.
A jockey's mishap during a steeplechase; a pleasure boater's nightmare on the Mississippi River.
A man is buried in gravel; a flash flood wreaks havoc during tourism season. Also: a situation involving an elephant; a helicopter calamity.
An encounter with an octopus; predicaments involving window washers and a road worker.