SPOILER WARNING: This article contains major spoilers for Avengers: Infinity War, in theaters now.
The Agents of S.H.I.E.L.D. have come up against some pretty formidable villains, but they've really outdone themselves this time. Just two episodes ago, longtime S.H.I.E.L.D. ally Glenn Talbot rose as Graviton, a superhuman with immense gravity-based power. What's worse, Graviton emerged on the eve of Thanos' arrival on Earth -- which means that humanity is facing off against two omega-level threats at the same time. As the show intertwines its narrative with Avengers: Infinity War, it seems more than ever that the consequences of Thanos' final act will set Graviton's destruction of Earth into motion.
As many Marvel fans now know, Thanos the Mad Titan was successful in achieving his goal of uniting the Infinity Stones and extinguishing half of all life in the universe. With a snap of his fingers, Thanos caused many beloved characters to crumble to dust, including Bucky Barnes, Black Panther, Spider-Man and Groot. This game-changing conclusion to Infinity War impacted the Marvel Cinematic Universe at large, sending shock-waves through the galaxy.
It stands to reason, then, that the Agents of S.H.I.E.L.D. characters and those they love will suffer the same fate. Starting now, any S.H.I.E.L.D. agent could evaporate at a moment's notice. For Graviton, this means one of two scenarios: Either he, or someone he loves, will fall victim to Thanos -- and both will likely end in the destruction of Earth.
After a gunshot wound to the head, Talbot suffered a severe trauma that left him a little unhinged -- and the process that bonded his cells with gravitonium only made it worse. His explosive mood swings, irrationality and new power set have proven to be a dangerous combination, even leading him to turn on allies like Phil Coulson and Daisy "Quake" Johnson. Now imagine what would happen if his wife or son were to crumble away before his very eyes.
Since he was reintroduced in Season 5, Talbot has wanted nothing but to return to his family. However, his situation -- particularly how he was conditioned to be a sleeper agent for Hydra -- has prevented him from reuniting him with his wife and son. Now that he has become Graviton, though, he is so powerful that no one can stop him from doing what he wants. This includes going to see his family, just as he does in the preview for "The Force of Gravity," this week's episode.
Knowing what we know about the conclusion of Infinity War, this reunion does not go the way Talbot expects. There's a very good chance that at least one member of the Talbot family will disappear in the wake of Thanos' snap, forcing him to watch as someone he loves -- probably his son -- is erased from existence. This could lead Talbot to have a mental break of the world-ending variety. If he were to unleash the full extent of his powers in his rage and grief, he could shatter the planet, just like Coulson and his team saw in the year 2091.