This article contains spoilers for episode 4 of "Star Trek: Starfleet Academy." "Star Trek" has always had a Klingon "problem," but never really to this extent. Over the decades, however, the Klingons' narrative purpose in the "Star Trek franchise has evolved nearly as much as their physical appearance. The fourth episode of "Starfleet Academy" has now taken the "Star Trek" species into the far-flung future, and the results are, fittingly, complicated. "Starfleet Academy" takes the opportunity to approach this topic exactly as you'd expect it to: with an earnest, emotional debate for the ages and a final diplomatic twist that's as vintage "Star Trek" as it gets.