Mason is tired of being the guy nobody can see. Literally. Neither he nor Olivia know why he's invisible, or why she's the only one who can see him. It's simply how things are, how they've always been since Olivia found Mason crying in her front yard at five years old. She's happy to let things lie, but Mason isn't, at least until the truth finally begins to be revealed and learning who and what he truly is puts everyone he loves in danger.