Good closeups of the Charon this week. Yes, there's an inner Palatial Garden or whatnot on the big ring. And I gather the Mirrorians aren't extra sensitive to the glow of that big ball of fire as such, merely to sudden changes in light levels.
Okay, so the ball is a mushroom furnace that is ruining the universal climate. Early on, we learn the stakes are high: if not stopped, the furnace will make "all life" impossible. So it can't be our reset button where merely the mushroom network would be gone and DASHing around would have to stop.
We also get technobabble on the ball creating e.g. its own gravitic anomaly, so we can get a cool freefall scene later on, and an excuse for containment, etc. (And speaking of the freefall, we get forewarning in a delightfully Lorca scene where the relevant hatch gets to strut its stuff.)
Enter Lorca, exit Georgiou. The fight for the Throne goes as it should: two people have logical access to the ruthless resources of the deathtrap Palace, and use them against each other much as they should. In the end, this probably amounts to a true palace coup, with relatively small numbers of troops actually involved/killed.
And then we get a Boss Fight where everything again works right by the numbers. Highlights:
+ Initial surprise. Two heavily guarded individuals manage it thanks to suitable diversion. I mean, direct bombardment by a starship at point blank range should suffice, right?
+ We also saw Burnham do the exact same thing once already in the episode, dropping two guards who stand way too close and then taking cover in the nooks and crannies of the throne room. Who knows, perhaps the assorted Emperors built the place with exactly this sort of thing in mind?
+ Suitable use of resources overall. It may be headed for an obvious knifefight like a runaway train, but guns aren't inexplicably shunned, or conveniently kicked out of hands immediately. It's just that a single body can act as phaser armor for another. (But why's that?)
+ As per every dramatic convention, the main characters (for the purposes of this fight) get to fight each other, while the sidekicks have their own fight. But the Evil Sidekick sensibly escapes and returns with reinforcements, which never happened to James Bond.
+ Henchmen don't attack one by one. Dissimilar weapons clash. There is even blue-on-blue there. Good direction.
+ Both the bosses have Imperial combat training, obviously. But logically, Georgiou is the better kicker, while Lorca is the stronger puncher, who logically ought to win in the end, and does.
+ But why doesn't Lorca beat the crap out of Burnham, who's a featherweight and less armored (her kunckles must really be pulp after that!)? Well, thankfully, she's Burnham and he's Lorca. Which is a single dramatic conceit to decide a fight that otherwise went as it really should.
Meanwhile, our good team figures out how to save the day. Which is fine and well for once - the Discovery is very much supposed to be a concentration of exceptional eggheads and resources, unlike, say, Kirk's ship. No, they don't invoke the Navigational Deflector. But they do use the warp field as a shield, which I think is actually a first.
And then we return home, with the m-network manifested on the main viewer for the first time (courtesy of extra resources flowing through Stamets, perhaps?).
What else techno-related? We get to see the ISS Buran in a flashback, yay! She's the pretty four-naceller. We see lots of MU phaser action, and it's evil, but apparently not evil enough as the effect doesn't propagate from body to body. We have Burnham MacGyvering Palace hardware like a pro, which is a bit odd. We get a tactical use of holograms.
And now our heroes, plus one villain, are stuck. And supposedly without a single spore left. I like the way every one of these MU episodes is a cliffhanger unto itself...