One of the first Trek fan film series, you can find the complete seven season run here.
The creators recommend starting with season six, as they were still learning in the earlier iterations (we’re currently following this recommendation for the rewatch.) So, here are the summaries provided to introduce the earlier five seasons. I’ll flesh them out later.
Season 1
From the ashes of the Dominion War, the Federation meets the Grey, a powerful alien race. The U.S.S. Excelsior is assigned to a new starbase, Deep Space 12, which serves to protect the healing planet Ba’ku and the hidden frontier of the mysterious Briar Patch.
Season 2
Conflicts with the Grey escalate as the Excelsior begins to explore the Briar Patch. Old enemies, like the Dominion, resurface and new enemies, like the Orion Syndicate, appear amid ancient mysteries.
Season 3
Deep Space 12 tries to repel a major Grey attack, political tensions rise among galactic powers in the Briar Patch, and a centuries-old antagonist appears at the center of a growing conspiracy.
Season 4
Ancient and powerful artifacts are at the center of new conflicts among the Federation, Cardassians, Bajorans and Tholians in the Briar Patch. The crew of the Excelsior face their own personal tragedies.
Season 5
For five years the Grey have stalked the Federation as Starfleet has plumbed the depths of the Briar Patch, discovering the powerful and ancient tetrahedrons. Meanwhile, the inscrutable Tholians have stepped up their own incursions in the Patch, bringing them to the verge of war with the Federation.