Return
When they looked back, they realized that out of nowhere, a blue sphere had suddenly appeared and surrounded the main territory building. Additionally, the sphere was continuously expanding towards them.
Just as they were wondering what was going on, they received a message from Henry that the sphere that had appeared was the invisible territory barrier that was currently expanding after he had taken over the zombie territory.
Of course the only one who did not receive the information from Henry was Julie considering that there was not telepathic connection between her and Henry. So, Dylan went ahead and explained to her what was happening.
Of course Julie found this scenario quite familiar considering that during that time that she was back in Crystal City, she had observed as a blue sphere suddenly began expanding.