Yeah, this being the first part of a two-part flashback, it's a lot of setup rather than actual action (next episode ;D), so presenting all that while still keeping it involving for the viewer was the major challenge here. I'm glad it kept you interested!
The previous two episodes have more in the way of direct action, so you might find those useful for comparison.
You raise a good point about being able to follow the episode even without seeing the ones before it. That was a plus of this episode being a flashback, because it's almost like starting its own story, only of course it ties in with the episodes that come before and after it. It's something I'll have to watch out for as I make episode 4, because that one starts immediately after the end of this one, so it will be more of a challenge to make the story as accessiblef or those who haven't seen the episode 3. Still, I try to keep the storytelling style pretty direct, so I think it'll work out.