Spoiler warning for anyone who hasn't yet watched The Flash episode "Harry and the Harrisons."
Color me a huge fan of any episode of The Flash that contains multiple new Harrison Wells personalities, on top of the return of Katie Sackhoff's Amunet Black. Plenty of memorable moments were had -- I'm quite glad McConaugh-Wells didn't get to finish his story about that warm apple pie -- but there are more important moments to talk about. Not only did Team Flash get two weapon that they'll use to try and stop The Thinker's Enlightenment plan (so to speak), but they also realized that finding Marlize will be imperative to their quest, and they took to crowd-sourcing to take The Thinker himself down for the finale. Never a dull moment in Central City!
Killer Frost Ain't Dead, Y'all
Since Team Flash has been shedding team members this season, and with Cisco helping Wells, Barry and Caitlin went out in search of Amunet to get her assistance in defeating The Thinker, with Caitlin having an ulterior motive to use the villain's splicer tech to bring Killer Frost back. Of course, there was a mess involving the cloudy-eyed Norvok having robbed Amunet, but that was something of a Macguffin, since Amunet had been lying to her all this time. It turns out it wasn't the splicer tech that helped Caitlin gain control of Killer Frost, since it didn't work on her at all. Rather, Caitlin was her own cure in that respect, just by believing in the placebo effect.
To sidestep the troubling and aggravating elements involved here -- such as having Caitlin be so angst-filled about Killer Frost's absence, all because she just didn't believe in herself enough or whatever -- we'll just be appreciative that Caitlin now plans on looking inside herself to figure out how to bring Killer Frost back to the surface. And she'd better hurry, since DeVoe can only sit around doing nothing for so long.
Amunet's Weapon Gift
Amunet got one of her coolest moments ever tonight during the standoff with the shard-stealing Norvok, who got to go wild with his own metahuman power...a poisonous snake that comes out of his eye. Just when it looked like Amunet would use her metal powers to kill him, Caitlin convinced the villain there was still some virtue left inside her, and Norvok's life was spared. But not before Amunet totally sliced that snake up. (But uhhh, why didn't Flash or Joe quickly apprehend him or anything?)
In any case, Amunet decided to grant Team Flash a pretty major weapon in the form of a "psychic dark-matter infused metal shrapnel bomb" that Cisco is aiming to launch up in an effort to take out the satellites that DeVoe wants to use to sap everyone's smarts. Something tells me that bomb won't ever actually make it to its intended destination, and will go off here on Earth instead, since that's how things go on The Flash. But perhaps things will go as planned. And if so, I bet it's going to look pretty awesome.