Their Infected Story

In a world of destruction, nobody seems to understand the importance of being aware of their own surroundings. In the year, 2017, a new lab had been formed into a spawner of the undead. The place humans had stood then changed into a flesh eating world.
A year after this had taken place, a girl who goes by the name of Drista, had found an antidote thanks to her academy. Thinking her and her brother, Clay, could save the world, she had been taken.
For what seemed like so little time, Clay had stayed locked up, willingly, for years.
What would happen when Clay finally decides to go find survivors and get his little sister back? Will he succeed? Or will he add onto the flesh eating monsters?

(There are ships)