A reinvigorated Pete returns to Iraq with his girlfriend Alex at his side. In Syria, an unexpected snafu leaves PJ weighing his options. Facing inevitable defeat in both countries, ISIS is determined to cause as much damage as possible on its way down. But signs of life are reappearing in areas freed from terrorist rule. In the minds of the volunteers as well, hope begins to creep in as they take stock of what they've accomplished and what lies ahead.