We pick up with Dai-Guard on the ropes staring down 2-combined heterodynes and running low on power. A gamble involving impact mines stalls the creature long enough for Shirota, Ibuki and Aoyama to breathe, but also leaves the door open for Anzen Hoshou GUN to step in. The O Ls
search to no avail for Akagi, whose hospital he was staying at was completely destroyed.
Night falls, and the creature begins to stir. Unfortunately, there's not much to do but recharge Dai-Guard and watch the Armies attempts at destroying the beast. Thankfully, it turns out Akagi is not only OK, but helped lead the hospital evacuation. It's there that he meets Aoyama's mother, who reveals that the reason Aoyama doesn't mention her is because he's concerned about his image.
That's right folks, Aoyama constantly abandons his work and teammates to visit his sick mother, constantly whines whenever he IS present, nearly gets them killed, but STILL leaves them in the dark because he wouldn't look cool
. I found this to be idiotic and horrible, but the show thinks its silly and charming, as everyone finds this acceptable, and he's never called out on it.
Anyways, Akagi hitches a ride to the battle, where he's given an unpleasant greeting. Enter Gadgeteer Genius Rika Domeki and the Knot Punisher, the ultimate Heterodyne combatant, and one that requires two arms to operate. With good old-fashion teamwork, our heroes swoop in and one-shot the Heterodyne with no fuss. Iizuka is saved, and our heroes basks in the limelight.
If Wages represented the BEST Dai-Guard has to offer, then Shinjuku represents the WORST. The once-menacing Heterodyne is disposed of hastily, we gain little to no new insight of any the characters (and what we do comes across as shallow), the numerous comedy moments fall flat and there's no greater sense of unity between the trio because they didn't learn anything; they're the same as they were before.
What keeps it from just being bad on its own is that what you see here is what you get for the rest of the series. Battles become less exciting, potential threats end up being ineffectual and are brushed aside, and instead of actually bonding and understanding each other, our heroes constantly bicker because it's "funny". With but one more story wedged between 8 eps of rehashes and filler, Dai-Guard in a way ends here.