About this showing of Expedition X
Video captured by the U.S. Navy triggers Jess and Phil's investigation into mysterious, supersonic craft flying above the waters off California's Catalina Island.
Previously on TV
Expedition X
Aliens Of The Deep
Previously shown on Discovery .History on Thu 20 Aug 2026 at 16:00.
This showing has ended
This showing was on Discovery .History at 16:00 on Thu 20 Aug 2026. See future airings below or open the main programme page for the latest TV times.
Airing details
ChannelDiscovery .History
StartsThu 20 Aug 2026, 16:00
EndsThu 20 Aug 2026, 17:00
Episode / edition: Aliens Of The Deep
Next showing of Expedition X
The next currently listed showing is Sun 13 Sep 2026, 23:00 on DMAX.
See all current showings