Shingeki no Kyojin - ep18

Then when the battle with this intelligent Titan finish, they are face with a new problem. That is they have to choose to leave someone behind. The reason being is that during to battle one of their horse ran off while the other was kill leaving them with only one remaining horse, this means that someone has to stay behind because three people can't ride one horse. Although it is almost granted that the one that stays behind is given a death sentence, that it not a question of if the Titans get them but a question of when. However without much hope left they send up smoke around that will alert others that they are in need of help, but with the current state of things they aren't very hopeful that their luck will turn around. Then with the arrival of Krista it seems that not all is lost because she arrives with two extra horse so no-one get left behind.

Then with the ability to rejoin the other, thing the shift to how they are going to deal with the present state of things. It seems most of everyone doesn't understand Erwin Smith decision to continue with the mission, and the change of direction to head to the giant forest. Although the intent become clear later on that the object is to separate the two groups of Titans. The normal ones will be consumed with the thought of eating the last remaining remnants of the squad that are hiding up in the trees. While the true threat will continue it's pursuit of Eren. Now with they way things are shaping up it looks like a repeat of the final battle at Trost, that Eren might turn out to be their only hope of getting out of this mess alive. Although it looks like things might get resolved next episode, with Eren being force to confront this Titan.