In Our Sights (S01E05)

Fueled by Levi's sacrifice, PJ heads back to Syria with the aim of reaching Raqqa, the so-called capital of ISIS. In Iraq, while ISIS is losing its grip on Mosul, they launch a diversionary strike in Kirkuk, where Italian volunteer Alex rallies his troops to fight back. At the same time, the mounting casualties in Mosul push Pete to his limits, causing him to reach a critical breaking point.