S38 E1: Building the Great Cathedrals

S38 E2: Emergency Mine Rescue

S38 E3: Trapped in an Elevator

S38 E4: Dogs Decoded

S38 E5: Secrets of Stonehenge

S38 E6: Quest for Solomon's Mines

S38 E7: Secrets Beneath the Ice

S38 E8: Deadliest Earthquakes

S38 E9: Making Stuff: Stronger

S38 E10: Making Stuff: Smaller

S38 E11: Making Stuff: Cleaner

S38 E12: Making Stuff: Smarter

S38 E13: Smartest Machine on Earth

S38 E14: Crash of Flight 447

S38 E15: Venom: Nature's Killer

S38 E16: Japan's Killer Quake

S38 E17: Power Surge

S38 E18: How Smart Are Animals?