Caretaker Trilogy

His mother is not his mother. His father is not his father. And if Jack hadn't broken the high school football rushing record that night, he never would have known and nothing would have changed. But he did break the record. He appeared on the news. The Dark Army found him.

In a space-time-bending game of survival, Jack discovers he’s been sent from the future to save the planet--its oceans and rainforests. But in this young adult series of science fiction, fantasy and environmental thrills, it’s a race against time—and the Dark Army.

http://thecaretakertrilogy.com/