y1 tells of a misfit genius who just wants to be himself and who has always had an odd ability to alter his appearance. When he lands in the sales department of a pharmaceutical company, it becomes clear that there are those who would kill to protect the mysteries that the company has worked so hard to keep hidden. While on a sales trip to the South Pacific, a colleague is murdered. He finds himself sailing with a shadowy group known as y1 to remote islands where he and his new friends will need every unique ability that they possess to resist being turned into the next murder victims.