Imagine starting a new project where the leader and the entire chain of command is on the same page, inspiring everyone to contribute faithfully and efficiently to the cause. Now imagine that this cause is not the Lord's cause. 

While the young King Josiah leads his people in a faithfully executed temple repair campaign, the Book of the Law is discovered within the temple treasury. The Book of the Law presents itself as the true treasure and offers a new chance for Israel to get on the same page - quite literally - of Deuteronomistic reforms which is Israel's only hope amidst destruction and pending exile.