My favourite episode of Battlestar Galactica (the remake) is episode 1, not the pilot (which is a little slow), the first episode proper.
It is called 33, which is the number of minutes the Galactica crew have before the Cylon fleet cath up with them, and they have to make a hyperspace jump to escape them. There are then another 33 minutes before the Cylons catch them again and they have to jump again.
The ship is falling to pieces and the crew are pretty much falling to pieces too. No one can sleep as they are just trying to get everything ready for the next jump, and everyone is so stresssed out by the unbearable tension that they are arguing with each other and all having half hourly nervous breakdowns. There seems to be no escape and this cycle is just going on forever.