Spoilers follow for Star Trek: Starfleet Academy Episode 4, “Vox in Excelso,” which is available on Paramount Plus now. Star Trek: Starfleet Academy Episode 4 - ‘Vox in Excelso’ Images View 24 ImagesThat’s a long way around to saying that “Vox in Excelso” finally gives us our 32nd century Klingon episode, and it’s a good one where we get not just an update on where the Klingons have been (and where they’re going), but also a focus on Jay-Den and the events that led him to the Academy. As “Vox in Excelso” proceeds, we see in flashbacks how Jay-Den’s father constantly pressured him to join the warrior’s way. But it’s those memories, particularly of his fallen brother, that makes Jay-Den react so strongly to Caleb. It’s also a callback to Praxis, the over-mined Klingon moon that got blown apart in Star Trek VI: The Undiscovered Country.