Granted that you never see them sleep or eat, it isn't that far fetched. I have on many occasions worked 24 hours at a time, not often but I've done it. Doctors do it, so do some police officers and firefighters (my brother for one) and not to mention people of the military who often go hours on end without food or sleep. But the entire series takes place in a 24 hour time period. Like I have said before if you can get season 1 on DVD and start from there, if you start watching this seasons now you missed out on allot! But I think you'll get the idea of the program and I guarentee you'll be hooked!