Saru has become a very interesting character. From a race of "prey", he has developed abilities that help him determine who or what is a threat, and what to do about it. But he is always living with that adrenaline ready to pump, ready to run, his senses always scanning for threats.
But this planet "Pahvo" has a transmitter that, if modified, could help Starfleet see all of those Cloaked Klingon Ships that got a free Cloaking device for pledging Fealty to Kol. But of course, that sounds "too easy".
But what about The Pahvans? They assimilate Saru and show him peace for the first time in his life. But is that a positive thing? Because he is acting very uncharacteristically.
So Tyler and Michael have to carry out a small mutiny to keep Saru on track, and all that causes is that we get to see just how fast Saru can run. Which is, "Extremely".
And, will the Pahvans actually let Michael adjust their magic crystal tree? Or do they have other ideas on how this conflict between Qonos and Starfleet should be handled?
Is it that some cultures are flabbergasted when coming into contact with a species that would bombard their planet with Disrupters? Or even when contacted by a culture that professes "peace" and The Prime Directive?
These Pahvans, we really never find out why with them. I hope we get to revisit Pahvo at some point.