The Sean Tanner Chronicles: Fight For London.
I have taken the story so far, leaving enough scope for you to continue. Don't forget the prompt text is copyright free, so if you want to branch off and create your own episodes using any of the characters and background information I've provided, then feel free to do so, that's the whole point of this website.
Going back to this episode, to carry on from where I've left it, you have months of fighting left before the dome is entered by Sean Tanner and Bridey Tyler. You need to think of a way to get in! Also, the Goblins have to be overpowered and freed from their masters. What technology will you find in the dome? How did the dome arrive? Was it an experiment gone wrong?