Looking for a tv show name

[num4!vr34umu5t4r!]

I watched a tv show some years back, it was about a group of people stranded or something like that on a spaceship or a bunker or something similar because there was an apocalypse or mankind was facing doom or whatever; but everything was a hoax in the end, something like in the truman show. Anyone know the title?

 

[Stingray]

Sounds like

Spoiler

Ascension

Great show.

 

[JDR13]

Sounds like

Spoiler

Ascension

Great show.

Mmmm Tricia Helfer