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Combat Trains
S1, EP1 "Nazi Railways"Auschwitz survivors explore the railways' part in the Nazis' mass murder.
The Codebreaker Who Hacked Hitler
Gordon Welchman's top-secret work helped defeat the Nazis and impacted modern codebreaking.
Air Crash Investigation
S25, EP2 "Running on Empty"Air Tahoma Flight 185, an overnight cargo flight from Memphis, Tenn., approaches its final destination, Cincinnati.
Air Disasters
S21, EP2 "Lockerbie Disaster"A bomb explodes on Pan Am Flight 103, causing the aircraft to disintegrate in midair and the wreckage of the aircraft to crash into the Scottish town of Lockerbie, killing all 259 people on board and 11 people on the ground.
Air Disasters
S3, EP4 "Impossible Landing"A look at the fate of United Airlines Flight 232 which crashed into Sioux City's runway in 1989; it caused a subsequent explosion that left 111 people dead.
Air Disasters
S14, EP8 "Controversial Crashes"Seeing how international investigative teams must overcome differences to solve controversial plane crashes.
Air Disasters
S18, EP4 "Dead Tired"Investigating the 2009 crash of Colgan Air Flight 3407; the plane stalls at low altitude and dives into a residential area near Buffalo, N.Y.
Air Disasters
S4, EP2 "Fire in the Hold"Moments after takeoff, a plane sustains electrical failures and crashes in the Florida Everglades, killing 110 people on board.
Air Disasters
S13, EP2 "Death Race"When a modified WWII fighter plane crashes into the crowd at a Nevada air show, investigators struggle to find the cause.
Air Disasters
S13, EP10 "Slam Dunk"A quick trip from Washington D.C. to Ohio in 1994 turns deadly when pilots of a twin-engine turboprop attempt a risky landing.
Air Disasters
S9, EP5 "Fatal Delivery"The two-man crew of a UPS cargo jet must attempt an emergency landing when a fire in the cargo hold fills their cockpit with smoke.
Air Disasters
S8, EP5 "The Final Push"Investigators try to find the cause of two similar air crashes that happened nearly 12 years apart.
Air Disasters
S13, EP3 "Fatal Approach"A false warning in the cockpit triggers a series of pilot errors, sending a commuter plane crashing by the runway of an Amsterdam airport.
Air Disasters
S5, EP2 "Speed Trap"Joining NTSB and military experts as they work together to uncover how a fighter jet could collide with a civilian flight.
Air Disasters
S16, EP6 "Meltdown Over Kathmandu"Landing at one of the world's most challenging airports, a passenger plane comes in like a fighter jet and crashes, killing 51 of the 71 people aboard.
Air Disasters
S7, EP9 "Vertigo"On Jan. 3, 2004, Flash Airlines Flight 604 banks to the right just after takeoff and crashes into the Red Sea, killing all 148 people on board.