Advent Children.net has started a thread with summaries of all episodes in Before Crisis. The latest episode seems to have major spoilers. All I've gathered so far from what I've read is that the Turks are going against Shinra? :unsure:

You'll find the summaries for all episodes here:

Before Crisis Episode Summaries

By reading these, you'll learn the whole plot of BC! :yahoo:

Source: Advent Children.net

Ooh, so maybe now we can find out what happened to the other Turks and why Reno, Rude and Tseng were the only remaining Turks when the Final Fantasy VII game started. Coolness.
Thanks for the info. :D