S22·E4 Extraterrestrial Engineering
Synopsis
Host Giorgio Tsoukalos probes the series archives to explore remarkable ancient structures that defy conventional explanation. From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of extraterrestrial contact in the distant past?
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Frequently Asked Questions
When did Season 22 Episode 4 of Ancient Aliens air?
Season 22, Episode 4 ('Extraterrestrial Engineering') originally aired on February 5, 2026.
How long is Season 22 Episode 4 ('Extraterrestrial Engineering')?
The runtime for this episode is approximately 42 minutes.
What happens in Ancient Aliens Season 22 Episode 4?
Host Giorgio Tsoukalos probes the series archives to explore remarkable ancient structures that defy conventional explanation. From the precisely cut stone blocks at Puma Punku, to the gigantic temples of Malta, and the megalithic city of Nan Madol, could these mysterious sites contain evidence of e...
All Ancient Aliens episode ratings Season 22 Where to watch
Top-rated Ancient Aliens episodes
- S2E8 · Unexplained Structures ★ 9.2
- S2E3 · Underwater Worlds ★ 8.8
- S2E6 · Alien Tech ★ 8.6
- S2E4 · Underground Aliens ★ 8.6
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