After humanity was ravaged by a mysterious plague and a brutal war, civilians were rounded up and placed into underground cities for protection. 7 cities were constructed in total, all with different names; Quarn, Alden, Esme, Rocque, Zephyr, Alma, and Eloise.
Siblings Rowan and Cal have known no other life than the one inside Quarn, being shielded from the wonders of the outside world. Rowan dreams of going to the world above, it just to satisfy her own curiosity, but to ensure her little brother gets to lead a better life than she has.
But, as the plague begins to resurface and claim countless lives, Rowan's will and ideology are put to the ultimate test.
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.