Tuvok gets a bum on the head and goes full retard. It’s kinda like Regarding Henry in space.
The B-story, however, is kinda interesting – about a planet’s scientist who is convinced these sub-space creatures exist, but everyone thinks he’s crazy.
And, yeah, I suppose the last scene between Tuvok and Neelix is a little bit touching. Dammit if Neelix hasn’t grown on me.