"Explore forgotten history and mysterious relics preserved deep inside Earth's most unforgiving frozen wastelands."
Merging state-of-the-art remote sensing technology with forensic archaeology, Secrets in the Ice examines extraordinary artifacts and lost civilizations emerged from melting permafrost. The docuseries investigates anomalous military installations and prehistoric phenomena with striking rigor. Following the conclusion of its gripping fourth season, Sky History leaves dedicated enthusiasts watching closely for fresh field expeditions and upcoming release news regarding the investigative franchise.
| Watched? | # | Air Date | Episode Name |
|---|---|---|---|
| E1 | Apr 08, 2025 | Echoes of the Lost Mountaineer | |
| E2 | Apr 08, 2025 | Secrets of the Antarctic Abyss | |
| E3 | Apr 08, 2025 | Woolly Mammoths Last Stand | |
| E4 | Apr 08, 2025 | Battlefield Beneath the Alps | |
| E5 | Apr 08, 2025 | The Giant Penguin Enigma | |
| E6 | Apr 08, 2025 | The Patagonia Ice Dragon | |
| E7 | Apr 08, 2025 | Ice Age Battlefield | |
| E8 | Apr 08, 2025 | Siberian Death Mask | |
| E9 | Apr 08, 2025 | Frozen Secrets of Prehistoric Warfare | |
| E10 | Apr 15, 2025 | The Donner Party's Lost Legacy |
Release Window: June
Secrets in the Ice has maintained a steady annual rhythm for four years, typically returning in June. Since its debut in late 2020, the series has evolved into a reliable summer staple for the Science Channel. While the inaugural season premiered in the fall, the network quickly shifted the show to a mid-year slot to anchor its warm weather programming lineup. This transition solidified its position as a consistent performer that audiences expect during the summer months.
The broadcast trajectory reflects a highly disciplined production cycle that prioritizes a yearly release cycle without significant hiatuses. By maintaining this predictable schedule, the network has successfully cultivated a loyal viewership that relies on the series for high-quality archaeological and geological exploration. Its longevity and adherence to a June window demonstrate its status as a foundational asset for the network documentary slate.