43x22: Bombing Hitler's Supergun
43x21: Operation Lighthouse Rescue
43x19: Can Alzheimer's Be Stopped?
43x18: Vikings Unearthed
43x17: Rise of the Robots
43x16: Iceman Reborn
43x15: Memory Hackers
43x14: Creatures of Light
43x13: Himalayan Megaquake
43x12: Mystery Beneath the Ice
43x11: Life's Rocky Start
43x10: Secret Tunnel Warfare
43x09: Inside Einstein's Mind
43x08: Making North America: Human
43x07: Making North America: Life
43x05: Animal Mummies
43x04: Cyberwar Threat
43x03: Secrets of Noah's Ark
43x02: Arctic Ghost Ship
43x01: Dawn of Humanity
42x22: Nuclear Meltdown Disaster
