An old-school adventure, without all the "save-the-world", "chosenity" and so on crap.
Adventrutes happen in a classic sci-fi "inhabited space", with various planets, strange alies, deep space mysteries, etc.
Main characters group is wandering around that space, every member of this improvised team solves his own problems and going to reach his specific goals. On the way with that adventurers do happen adventures(strange, isn't it?)
What else do you need to know? Go and watch it, now!