"The Last Day" is the eighth episode of the fifth season of Agents of S.H.I.E.L.D..
Coulson and the team discover that the most unexpected person from S.H.I.E.L.D.’s past may hold the key to stopping Earth’s destruction.
Robin Hinton, now in S.H.I.E.L.D. custody since her mother's death, survives the Zephyr's crash during the cataclysm in 2018 that ripped the Earth in half. Years later, she is living with surviving S.H.I.E.L.D. agents including May, FitzSimmons, and Yo-Yo in the Lighthouse. FitzSimmons try to build a time machine from schematics Robin saw in her visions, but Fitz is skeptical that it's even possible to change time. They're forced to accept the Kree's dominion over the Lighthouse as the bunker's life support systems begin to fail. Over the years, May raises Robin as if she were her daughter, especially as others grow tired of trying to make sense of Robin's visions. Robin tries to tell her one night about how she is supposed to get home, but May makes her promise to wait to tell her when they're back together on the plane.
In the future, after crash-landing on the Earth's surface, Coulson, Daisy, Deke and FitzSimmons make their way to the Zephyr's wreckage, where Robin Hinton and others the Kree exiled from the Lighthouse have set up camp. Voss, the leader of the scavengers who live there, recognizes Deke based on his likeness to his father, who Voss says is currently at another outpost. FitzSimmons discover the machine the scavengers used to send them through time the same machine their counterparts tried to build in the past, since completed by Deke's father. Deke recognizes the chunk of the monolith used to power the machine as one of his mother's possessions, one his father would've never voluntarily left behind. Voss knocks Deke out when he confronts the scavenger over what really happened to his father.
Kasius orders his men to direct the roaches to the levels of the Lighthouse inhabited by humans as "retribution" for S.H.I.E.L.D.'s actions. Mack, Yo-Yo and Flint realize what the Kree are up to when they run into none of the roaches when they retrieve the weapons Fitz stored on Level 3. They hurry to the Exchange, but the roaches have already killed several people. The three of them work together to drive back the roaches, and begin removing the survivors' metrics so they are no longer enslaved to Kasius.
Meanwhile, S.H.I.E.L.D. has had little success in getting Robin to tell them how they can return to their own time. Daisy tries to appeal to the promise she made to Robin's father, but to no results. Voss shows Daisy the last known footage of her before she supposedly destroyed the Earth. The scavengers attempt to kill Daisy before she causes all this, but when she proves too difficult to kill, Voss instead stabs Robin so she cannot tell them how to return to their own time. Once Voss and his goons are taken down and disarmed, May consoles Robin in her final moments. Robin tells May about how she raised her, and whispers in her ear how they can still return home. May, confused by what Robin told her, asks everyone "Who's Flint?"
Sinara finds the remains of the downed Trawler and reports to Kasius. He orders her to follow their trail, and show them no mercy.
- Clark Gregg as Phil Coulson
- Ming-Na Wen as Melinda May
- Chloe Bennet as Daisy Johnson/Quake
- Iain De Caestecker as Leo Fitz
- Elizabeth Henstridge as Jemma Simmons
- Henry Simmons as Alphonso Mackenzie
- Natalia Cordova-Buckley as Elena "Yo-Yo" Rodriguez
- Jeff Ward as Deke Shaw
- Dominic Rains as Kasius
- Florence Faivre as Sinara
- Joel Stoffer as Enoch
- Coy Stewart as Flint
- Michael McGrady as Samuel Voss
- Tunisha Hubbard as Ava
- Willow Hale as Robin Hinton/The Seer
- Ava Kolker as Robin Hinton (age 12)
- Lexy Kolker as Robin Hinton (age 7)
- Ava Kolker as Robin Hinton (age 12)
- Michele Tobin as Gretchen
- Jamal Akakpo as Comms Agent
- Dusty Sorg as Mouse
- Luke Massy as Hek-Sel
- McKay Stewart as Roughneck
Continuity and References to the Marvel Cinematic Universe
- Shotgun-Axe appears.
- Polly Hinton is mentioned.
- Virgil is mentioned.
- Charles Hinton is mentioned.
To be added