ABC's slate tends to typically skew towards soaps or family programming; but this year, it looks as though they want to expand into the kind of show that might be at home on a more action-oriented network like Fox.
Imagine a world where you can't die. Sure, you can suffer from disease, be shot, get wounded horribly, but you can't die. You're immortal, just not invulnerable. Now imagine a world where that's the case for everyone in the world. No one can die.