The Jake and Hawkins mysteries are crossing paths. Each one has secrets and both will have to confront each other sooner or later.
It doesnt appear Hawkins knew Jake before he came to Jericho since he had to look up his passport information.
Gray Anderson upon his return will suggest questioning of new arrivals in town based on things hes seen outside of Jericho. Jake might be included since he was gone for so long, not to mention Hawkins. The missile launch at the close indicates things have escalated. Paranoia and fear should escalate as people realize the worst is not over.