By chance, fourteen-year-old Toby Cobb gets in the path of time-traveler John Asher who’s
headed to save an important woman from the great San Francisco earthquake. As a result, both
of them end up trapped in a wasteland.
You can’t change history, dude. Known fact. You can’t mess with things. Create
paradoxes. You could much everything up so you don’t even exist, like in
Back to the Future. And, like, every time travel story known to man. You
shouldn’t even be telling me this.