Feels good to be back after 8 months, and the season starts off with a bang - literally.
I love the decision to have the kids roll right on up to a Federation relay station. Given the ominous portents we had at the end of the first 10-episode arc, it's clear that the kids can't ever really "go home" so to speak (at least not without abandoning the ship). I thought they'd just go right into the kids discovering it and then playing cat and mouse with the real Janeway all season as she serves as the antagonist. But having them see the practical effects of attempting to make contact adds real-world consequences to their actions, which will make the remainder of the season so much better. It also snatches away a false "happy ending" from the protagonists - which once again is great, as the story has moved forward, but now they have a new crisis to resolve.
While this is pretty clearly a plot-focused serialized show, the character writing remains excellent (especially considering it's nominally a children's show). The ability of the writers to have each of the five main characters distinct personalities (including their flaws and insecurities) come through in the course of a half-hour runtime is impressive. No one here gets a character arc so to speak, but all of the interactions are enjoyable.
The Diviner being rescued by real Janeway is interesting, but IIRC he was essentially mind-wiped because of seeing Zero, so I'm not sure what role he will really play in the story from here on out.
This episode does absolutely nothing wrong, but IMHO it would have been better served if it focused on a single POV and integrated a character arc into the plot this week. While there was certainly a crisis of the week, I do wonder if in retrospect after reaching the end of the season if this will stand out as memorably distinctive.