During 18th century India, the Marathas emerged as the most powerful empire in the nation until the Afghan King Ahmad Shah Abdali plans to take over India. Sadashiv Rao Bhau is brought in to save the empire from the king which then leads to the third battle of Panipat.

Two young soldiers, Bartle and Murph, navigate the terrors of the Iraq war under the command of the older, troubled Sergeant Sterling. All the while, Bartle is tortured by a promise he made to Murph’s mother before their deployment.