When Xavier Goureé found an ancient machine he used it with a mysterious black stone to give power to human being. Unfortunately, his grandchild, Malard Blitzkrieg Goureé take advantage to him, this caused him to separate from the group and create another group with Drail Col, a famous inventor at his time.
Malard granted the request of Xavier, to make him younger and have super intelligent that capable to understand everything in exchange with the stone. Xavier invented powerful machines, and robots.
Xavier has a slave, he is Marthyn Oarlocks. Marthyn is a wise slave though he doesn't have privileged to study, to go somewhere and do what he want in life, because he is only a slave, he couldn't stop to learn something. While Xavier experimented machines and robots he is there observing what Xavier is doing.
Until the time when Marthyn motivated to create robot, though it took time for him to finish the robot. Since he is a slave and he cannot concentrate in full time.
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.