A decade ago, two vans filled with high school seniors on a school service trip crashed into a Tennessee ravine —a tragedy that claimed the lives of multiple classmates and teachers. The nine students who managed to escape the river that night were irrevocably changed. A year later, after one of the survivors dies by suicide on the anniversary of the crash, the rest of them make a pact: to come together each year to commemorate that terrible night....

When A.J. and his friends sign up for Beaver Scouts, they find that their scout leader, Miss Blake, is only interested in preparing them for emergency disasters.