Bellamy did a lot of stupid, rash things this season, making bad decisions in the name of saving his people. He's finally pulled his head out of his you-know-where and come to his senses. Is it too little, too late?
It looks like there is someone (or someTHING) else at Arkadia, waiting for the group. Whatever it is, Clarke is approaching it very cautiously, as Bellamy keeps a gun trained on it in the background.
Apparently, when everyone up and left Arkadia, they left a lot of their equipment behind. Here, Bellamy is seen holding a radio. Who is he trying to contact? Maybe Kane, who's gone with the Grounders and an imprisoned Pike to Polis?
Remember a time when Monty and Jasper were the best of friends? That seems so far away now. After giving up trying to pull Jasper out of his trauma and depression and then joining up with Pike earlier this season, the rift between Monty and Jasper only grew wider. Now, they hardly speak. We miss their friendship!
Along with Sinclair and Clarke, the Blake siblings are cautiously checking out Arkadia. They seem to be working together rather well, so perhaps they'll come to make amends with one another before the season is through (we hope).
Raven and Monty sit in the rover while the others, armed with guns, survey their surroundings. Raven is probably still recovering from her injuries after being taken over by ALIE. And we're sure Monty isn't looking to hold a gun anytime soon, after fatally shooting his own mother during "Nevermore."
Jasper rides along on top of the rover, handling the gun up there. He's had a tough time of it this season, but maybe after saving Raven and sort of reaching an understanding with Clarke, he's about ready to come out the other side of his pain. At the very least, he's being a much more active group member!
After saving Raven from ALIE, the group returns to Arkadia to find it completely empty. Where have all of the Sky People under ALIE's control gone? While their minds are in the City of Light, their bodies must be somewhere... right?