Season 4 Episode
- Season 4 Echoes of the Lost Mountaineer
- Season 4 Secrets of the Antarctic Abyss
- Season 4 Woolly Mammoths Last Stand
- Season 4 Battlefield Beneath the Alps
- Season 4 The Giant Penguin Enigma
- Season 4 The Patagonia Ice Dragon
- Season 4 Ice Age Battlefield
- Season 4 Siberian Death Mask
- Season 4 Frozen Secrets of Prehistoric Warfare
- Season 4 The Donner Party's Lost Legacy
Secrets in the Ice - Season 4 Episode 7 Ice Age Battlefield
8.30 43 minutes Ice Age Battlefield: A Swiss fisherman uncovers ancient Celtic relics in Lake Neuchatel, hinting at a violent Iron Age battle around 225 BCE.
