You mean you can only run two gaming sessions (say 2.5-3 hours @) and need a scenario that fits in that time? In effect a "couple of Episodes" long in WFRP terms with some flexibility to speed up etc. or a "4 Act" with room for lots of roleplaying etc.
Are you using pregenerated characters or doing character creation in the first session? Are the players new to the system (e.g., play will move a bit slowly as they get sense of things)?
If you're an experienced GM, you may able to simply extrapolate something from the free Day Late, Shilling Short download (which stops still "on the road") on the support page, as it leave threads hanging with "the package" still to be sorted. Note, I don't think the pregens in that download are really "just created" characters so if players to come back later and want to "recreate a similar character" it may be tough.
If an dwarf-oriented adventure suits, the Black Fire Pass download is a more fullsome free official adventure.
(scroll down to scenarios)