Plot summary
As the gravity storm worsens, the team attempts to relaunch the Zephyr. May reveals that, using the shard, Flint can recreate the monolith, allowing the team to travel back through time. Similar to the Lighthouse, Fitz and Simmons find gravitonium on the Zephyr and realize the designs were manufactured by Fitz himself. On the station, Flint, Mack, and Yo-Yo successfully gain control of the lower levels. Tess is resurrected by Kasius and sent to relay his demands, threatening to kill everyone by detonating explosives if they are not met. Mack and Yo-Yo retaliate by placing the explosives on Level 35, the medical floor, which would prevent Kasius from breeding more Inhumans.
During a standoff with Kasius, Flint evacuates the inhabitants to the upper levels and uses the remaining explosives to separate them from the lower levels, out of Kasius' reach. Using the gravity storm to her advantage, May navigates the Zephyr into space as Daisy battles Sinara again, this time killing her. Daisy then contacts Mack while the team heads for the Lighthouse. Kasius reveals he has his own seer telling him what will happen.
Credits
Adapted from Wikipedia contributors, Agents of S.H.I.E.L.D. season 5. HTML formatting and reference markers removed.