All Cameron wants is a 'normal' life - friends, swimming, school, family.
But most normal thirteen-year-olds don't desperately need a new heart because theirs doesn't work properly.
One doctor offers hope. Cameron could - if he and his parents agree - take part in a radical and controversial procedure involving the transplant of a pig's heart into his human body. It's risky. And it's never been done before . . .
While Cameron comes to terms with the idea, he finds the world around him is much, much less accepting. But surely everyone will understand that it's better to have a pig's heart that works than a human heart that doesn't - won't they . . .?