Welcome to NLMI, Nightshade Lab and Medical Institution. Some of the experiments at NLMI used to be humans, others used to be animals. Either way, most used to be something before NLMI took them in and...improved them, wiping their memories and changing their personalities and appearances, until they are unrecognizable from what they used to be.
The head of NLMI, who the experiments only know as Angel, takes a liking to EX. #285, and stops all experiments on it. #285, or Grey, the name it gave itself, is confused, but NLMI is all it has ever known and so it trusts Angel, as it sees her as a guardian. But after finding out what NLMI is about...#285 starts to doubt Angel and worries about the other experiments...
But Angel and the other scientists have never treated #285 with the cruelty that the other experiments talk about and suffer from.
Grey may be able to stop NLMI, but in the process shatter the only life it's ever known...
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.