In the year 2013, you live a substantial amount; 80 years to be exact. You're born, you live about that long, and die.
The year 3045 couldn't be any more different. Every child born has exactly 18 years to live their lives and do as they wish- rules and laws taken into consideration- and then they're taken to a small white room and injected with a lethal drug.
Except for the rebels. But they're just a myth. It's said that, on the night before each of their birthdays, the five disappeared into the dark night without a trace, never to be seen again. The guards stopped those rumors by informing everyone that their bodies had been found, torn apart by wild animals.
And that little whit lie calmed the nerves and settled the hormornal teenagers with thoughts of running from their certain deaths. Until a few weeks later when one of the rebels was caught. He was dragged into the square, beat, then shot in the face.
And that's the end of that. No one wants to run away, and everyone accepts the death by lethal injection in private, over the public humiliation and death the boy faced. No pun intended.
Except for Harry.