Zip is a military working dog destined to serve in the U.S. Special Operations Forces. Uniquely trained, he joins a SEAL Team and is deployed in Afghanistan's dangerous Korengal Valley with his partner and best friend, Petty Officer Todd Mitchell. Todd, the team, and their new K9 have their skills continually tested by the sinister influence of the Taliban leader dwelling in the mountains. As they battle the insurgents; the team defuse IEDs, uncover caches of weapons and withstand harassing enemy attacks. Eventually, they face dire circumstances when pursued and ultimately trapped where they make a desperate attempt to escape. The circumstances of the ensuing battle and extraction cause the team leader, Lieutenant John Kelly, to make an agonizing decision that tears at Todd's dedication to duty and his devotion to his K9 partner and friend. Can Todd and the team carry out their orders knowing that it will probably cost their most beloved member his life?