Over Our Heads

Sean's still up to his neck in trouble, but at least he's finally found an example of his father's work, along with all of his notes. Now all Sean has to do is figure out not only how to reproduce his father's greatest achievement, but to solve the one problem his father wasn't able to.

Holed up in a cold war era bomb shelter, all Sean wants to do now is keep his head down and his family safe, while he untangles this latest problem. Like it or not however, Sean has set events in motion that wil...