"At the end of everything, one should expect the company of immortals"
-Me/Ishielda, Doctor Who.
Centuries after the extinction of humanity, the world is populated by their evolved ancestors, and a fragile peace has been created.
The Brotherhood of Mankind, led by the enigmatic Angels, has begun attempting to resurrect human civilisation using broken pieces and incomplete records, and are using the local population as raw material.
And between it all, the Masked Man roams, wielding technology the world has never seen, and possessing a knowledge of humanity the Brotherhood would, and does, kill to get their hands on.
This is not the story where the hero saves the world. The world already ended. This is what comes after.
Season 4 of The Virus Within
Trinity is familiar with zombies, being one herself, but when strange zombies start appearing, she realizes that the world she knew might be changing yet again.
When a dangerous set of scientific notes are discovered, Trinity and her friends don't realize anything is wrong until a frantic radio call comes in. Unaware of the notes, they race to the south and struggle to determine where the strange zombies came from. The zombies are unlike any ranks previously seen, and they aren't as predictable. Some have new tricks hidden up sleeves, forcing any Stronghold they encounter to quickly adapt to the new challenge or risk being overrun. Secrets never remain hidden, and zombie apocalypses never make life easy.