Tonight

• 20:00 CAT

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  American Doomsday

  American Doomsday

  Historians and security experts explain how America’s Doomsday Plans were used on 9/11 and the vital role they would play in future cataclysms.

• 21:00 CAT

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  Inside 9/11

  End Game

  While the Twin Towers were burning, a third aircraft hit the Pentagon. Passengers on the final flight fought the hijackers as they headed to a fourth target. As America mourned, the West identified its deadly foe: al-Qaeda.

• 22:00 CAT

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  Earth Investigated

  Parallel Universes

  Strange hidden worlds where an alternative reality exists may sound like a myth, but many leading scientists believe they are real.

• 23:00 CAT

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  American Doomsday

  American Doomsday

  Historians and security experts explain how America’s Doomsday Plans were used on 9/11 and the vital role they would play in future cataclysms.