WARNING: This article may have spoilers for The 100 season 7 episode 12. Read at your own risk.

The 100 season 7 episode 12 is coming next week on The CW, with the title "The Stranger." Bellamy is one of the biggest concerns here. While he finally returned, he looks entirely different than who he was before. His absence was felt through most of the season and it seems like something happened to him during his time away.

In the promo of The 100 season 7 episode 12, Bellamy (Bob Morley) is clean-shaven and he is acting unlike his old self. This is something that shatters Clarke (Eliza Taylor), given that both of them have gone through a long journey together. Also, the clip shows that everyone else seemed to be confused with whatever he's doing.

The main question now is whether or not the old Bellamy will be back. There is no certain answer to that question at the moment and there are a lot of uncertainties as to what the future holds for him. But since we're nearing the series finale, we could expect some big moments that could shake the entire story. Perhaps, there is a real purpose why Bellamy is doing all of these things.

There are only a few episodes left after this one and there's still time to change things and shift the story. For now, Clarke and everyone else has to deal with the new Bellamy until they figure out a way on how to get back the old one. They've already faced a lot of challenges since the beginning and this one could be their major challenge now.

As for what else is coming in The 100 season 7 episode 12, Clarke, Octavia (Marie Avgeropoulos), Raven (Lindsey Morgan), and Echo (Tasya Teles) are struggling to deal with a new foe. This is likely a reference to the episode title. This stranger could further stir things up and his or her arrival could test almost everyone at the Sanctum.

It's yet to be seen as to who this stranger could be, but Clarke and others will be challenged because of this person. So, in addition to Bellamy's storyline, this particular plot could also be one of the central parts of the upcoming episode. We could expect some twists and turns here, leading to more stories in the series finale.

The 100 season 7 episode 12 airs on Wednesday, Aug. 19, on The CW.