At the end of the Agents of S.H.I.E.L.D. episode “The Good Samaritan“, Eli Morrow recreated an experiment to give himself powers. However, in the process, Coulson, Fitz, and Robbie were caught in some sort of explosion that left their fates unknown. Here is what might have happened to them.
Note: This article contains massive spoilers from the Agents of S.H.I.E.L.D. episode “The Good Samaritan” and massive spoilers from Doctor Strange.
They Are Stuck in the Past or the Future
Although Doctor Strange did not introduce the full concept of time travel to the MCU, it did introduce the concept of forwarding and reversing time as well as alternate timelines. We don’t know the kind of energy released by the explosion so it might be possible that the energy was strong enough to send the trio somewhere else in time. It would be a new concept for Marvel to explore and it could also bring back older characters for a couple of episodes if they go back in time or introduce some new characters (possibly the Inhumans from the new TV show) if they go forward in time. Marvel has started to explore the supernatural in this season of Agents of S.H.I.E.L.D. so this is possibly not a huge stretch. It could also act as a tie-in to Doctor Strange.
They Are In Another Dimension
Another concept introduced in Doctor Strange was the Multiverse which is the collective of all parallel dimensions in existence. The Darkhold (the book that was used to build the device) is said to contain infinite knowledge. If the book holds the information of multiple dimensions, it is possible that the energy used to power the machine was so powerful that it ended up sending the trio into another dimension. It could follow the plot of Simmons in season 3 when she had to survive on the planet she ended up on at the end of season 2 until the team could rescue her. Once again, Agents of S.H.I.E.L.D. has started to explore the supernatural this season on and this could also act as a tie-in to Doctor Strange if they plan to do a tie-in.
They Are Dead
Although it is unlikely that they are dead, it is possible. The show has killed off characters before, such as Triplett and Lincoln. The latter was part of the main cast in season three so the show has killed off main characters before. However, even if they did kill off the trio, they most likely would not stay dead. Two of the characters that might be dead are main characters and one of them was the whole season after them. Marvel tends to bring characters back from the dead, and since these characters are so important, this scenario would be no different and the characters would not stay dead for long.
They Have Become “Ghosts”
Another possibility is that the trio was turned into “ghosts” like Lucy Bauer. Eli used the machine he and the crew at Momentum Labs used on the crew to most likely kill them. It seems like that was the machine that caused the other members of his crew to turn into the “ghosts.” That was the same machine that Eli used to give himself powers (which was the original purpose of the machine) and the same machine that caused the explosion that the trio got caught in. It is highly possible that the machine had the same effect on the trio and the rest of the team will have to figure out how to change them back.
We will most likely find out what happened to Coulson, Fitz, and Robbie when Agents of S.H.I.E.L.D. returns on Nov. 29, 2016, with the episode “Deals With Our Devils“.