Installing episode 2 on Fire TV

I have the Game of Thrones game on my Amazon Fire TV. Unfortunately, the Fire TV doesn’t seem to have enough room for both episode 1 and 2, so I’m trying to delete the first episode to make room, but I don’t know how. There doesn’t seem to be an option anywhere in the game menu, and deleting it from the Settings > Applications section on the Fire TV will delete the entire application and thus the save files.

In the game it states that deleting the episode but not the app will retain saved data, but there’s no hint as to WHERE the episode can be deleted. I’m doing this because when I try to download the second episode, it simply says “Failed. Content failed to download.” so I assume it has to do with the little space the Fire TV has available. Any help?