I agree, everyone looks very nice in this episode. None of the older-generation characters appear in this episode, it's just the young 'uns.
It's always fun to see the duplicitous Nathan again, even in such a contrived situtation. Peter confronts him with the "thirty pieces of silver" he got for betraying Vicki.
When Maggie and Joe return to the cottage for the first time since Sam's death, they notice that a light has been left on, even though Maggie doesn't remember turning it on. We know that Stokes turned it on to draw Adam to the cottage. And of course they find the professor's stickpin.
Jeff's dialogue is credible for the circumstances, but RD's delivery was awful, if I remember rightly.
Julia once hypnotized Vicki before the 1795 story line, and she wisely made Vicki forget that it had happened, so it seems plausible that Vicki wouldn't know of Julia's talent in that line. I'm not sure how Jeff knows about Stokes, but Vicki might have told him off camera.