Full Metal Panic! Season 2 Episode 7 Left Behind

Sousuke and Kaname are going to a trip to the hot springs together with their class 3rd grade. Sousuke hasn't caught the idea of the whole thing, while Kaname is very excited about it. Sousuke's mission is to protect Kaname from any danger, but in this environment, he'll have to protect her from other girls that will be going to the hot springs with them.

When the day finally comes, Sousuke and Kaname must join the rest of the class on the train. Sousuke is focused on Kaname but is quickly caught off guard when the train starts moving, and he ends up getting separated from the rest of the group. To make things worse, he also ends up losing his phone, so he has no way to contact Kaname.

Meanwhile, Kaname has realized that Sousuke is nowhere to be found and starts worrying about him. However, she can't do anything about it since her phone is out of battery.

As Sousuke tries to catch up with the train, he runs into a group of suspicious men which he quickly realizes are members of Amalgam. He knows that they're after Kaname and realizes that he must fight them off and try to make it back before something happens to her.

Left alone with no backup and surrounded by enemies, Sousuke must fight his way through to catch up with the train and protect Kaname.

In the train, Kaname is trying to contact Sousuke using one of her classmates' phone, but she can't get through to him. She then remembers a conversation she had with Sousuke about the importance of communication and decides to take matters into her own hands.

Using the train's emergency communication system, Kaname broadcasts a message to the entire train, asking if anyone has seen Sousuke. Her classmates, who have noticed her concern, quickly realize how important Sousuke is to her and volunteer to help her search for him.

When Sousuke finally catches up to the train, he's surprised to find that everyone is looking for him. He's touched by the fact that Kaname and her classmates care so much about him, and he realizes that he must try harder to communicate with her and understand her feelings.

Back in the train, Sousuke and Kaname finally reunite, and they promise to always keep each other informed about their whereabouts and their feelings.

In summary, Full Metal Panic! season 2 episode 7 showcases Sousuke's determination to protect Kaname, as well as his growth in understanding the importance of communication in their relationship. The episode also highlights Kaname's kindness and concern for others, as well as her ability to take charge and solve problems on her own.