Mack and Yo-Yo try to outsmart Kasius as their friends speed back to the Lighthouse
The seer Robin Hinton may be dead, but she left the S.H.I.E.L.D. agents with an idea of what they need to do. I thought they wanted to use Flint’s geokinetic powers to reconstruct the Earth, but looks like they’re aiming smaller: Using his powers to reconstruct the white monolith and send them back to their own time, hopefully to prevent this dystopian future from ever happening. Coulson sums the master plan up thusly: “It’s a rock, Flint controls rocks, I don’t know.”
As for Voss, the man who killed Robin and tried to kill Daisy as well, Coulson has left his fate up to Deke. Confronting the old man in his new cell, Deke determines that among Voss’ other victims is his own father. Deke does not possess that same killer instinct, so he can’t pull the trigger to finish Voss. This gives the murderer room to make his own pitch: Let Kasius take Daisy like he wants, that way we don’t have to worry about her going back in time and screwing this all up all over again.
Back on the Lighthouse, Mack and Yo-Yo have turned the once-frightened human population into a rebel army that has successfully taken control of much of the station, killing roaches and Kree alike. Unfortunately, Kasius still has some tricks up his sleeve. Somehow, through an unknown mix of technology and magic, he has proven capable of resurrecting people. So he resurrects Flint’s friend Tess and sends her back to Mack and Yo-Yo, demanding that they surrender themselves to him or he’ll “end the human race with the push of a button.” Yo-Yo would prefer to just kill him at superspeed before he can do anything, but Mack wants to know what they’re up against. His guess is that Kasius’ plan is to cut the Lighthouse’s oxygen, but upon further investigation they discover that it’s so much worse. The explosives are rigged to completely incinerate the levels where the humans live.
Without knowing how Kasius will trigger this trump card, Mack and Yo-Yo find themselves in the strange situation of de-escalating the rebels they just spent so much time spurring into action. They announce their plan to turn themselves over to Kasius. They hope it’ll give them the chance to get close enough to him to finish him once and for all, but they’re not leaving things to chance either. In addition to them, Kasius also demanded the turnover of all babies with Inhuman DNA. So when Mack and Yo-Yo send Tess back to Kasius with their response, it includes a twist the Kree probably wasn’t expecting. Mack and Yo-Yo have holed themselves up in the laboratory, and if he doesn’t come himself they’ll destroy all the tech he uses to breed Inhumans. Your move, Kree.
On the Zephyr, Fitz and Simmons are having as much trouble figuring out this show’s current time travel timeline as I am. Upon seeing the “gravitron” substance powering the ship’s engines, Fitz realizes that they invented it, sometime in the past, which is also in their personal future because they haven’t done it yet. He also surmises that it’s a Back to the Future “Johnny B. Goode” situation, where the only reason they’re able to invent it in the past is because they already saw it in action in the future. For Fitz, this is proof that he’s right about the indifferent universe, that nothing they do will ever change the timeline. But Simmons just takes it as an indication that they will eventually make it back to their own timeline.
Soon, Simmons is hit with her own scientific inspiration. The Zephyr’s engines aren’t working well, but she realizes they don’t necessarily need them. If they can just release their anchors, they can ride the incipient gravity storm off of Earth’s surface and straight to the Lighthouse.
The only problem is, the anchors aren’t releasing. When Daisy goes down to investigate, she finds none other than Sinara. Daisy’s able to release the anchors just as her fight with Sinara resumes, leaving the two to weave in and out of zero-G conditions as the ship rides the gravity storm. Sinara almost gains the upper hand, but thankfully Deke ultimately decides to side with Daisy instead of betraying her, and together they take Sinara down.
Back at the Lighthouse, Mack and Yo-Yo finally come face-to-face with Kasius. The moment he reveals his detonation device, Yo-Yo makes a superspeed lunge for it, but unfortunately Kasius’ guards have erected an impenetrable energy barrier around him. So Kasius activates his weapon, but the explosion is way smaller than he assumed; apparently, Mack and Yo-Yo were able to get the other humans clear of the limited blast radius. So then the other shoe drops, as Mack incinerates Kasius’ Inhuman breeding technology right in front of him. The horrified look on the Kree’s face is more than worth it.
But this isn’t over yet. Kasius is still alive, and so now his forces prepare for their ultimate confrontation as the Zephyr speeds towards the Lighthouse. Until next week…