Mark CMG
Creative Mountain Games
What Should You Be Able to Accomplish in Four Hours?
Two pokes and a smoke?
Alternately, I'm a believer that a full adventure should be able to be run in a game session (roughly four hours). It might take a bit longer with a new group, but with some coaching and pregens, this should be doable also. The idea that a single adventure or "episode" in a larger adventure path (or what have you) should be dragged out over weeks of gaming is far from satisfying, IMO. For most rules systems this might manifest as five to seven encounters/happenings/etc. though with older rules systems this might be more muddy.