| Name | First Aired | Runtime | Image | |
|---|---|---|---|---|
| S00E01 |
Pilot: Are You Prepared for Doomsday?
|
June 27, 2011
National Geographic
|
60 | |
| S00E02 |
Extra: American Doomsday
|
National Geographic
|
60 | |
| S00E03 |
Italy
|
June 6, 2013
National Geographic
|
60 | |
| S00E04 |
Top Survivors
|
October 27, 2013
National Geographic
|
60 | |
| S00E05 |
From Bunkers to Bug Out
|
July 24, 2014
National Geographic
|
60 | |
| S00E06 |
Back to Basics
season finale
|
July 24, 2014
National Geographic
|
60 |
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