In the premiere of this medical procedural drama set in a military hospital in Afghanistan, doctors and nurses from allied countries provide surgical care to troops. First up: Maj. Gordon (Michelle Borth) and Capt. Trang (Terry Chen) report for duty and deal with rocket attacks, flying shrapnel and waves of wounded troops.

When the hospital has an outbreak of an unknown bacterial infection, the OR, ICU and recovery room are quarantined so doctors perform surgery in the dining hall. Meanwhile, Gordon and Pedersen encounter an emergency at a women's clinic off base.

Rebecca and Bobby operate on a severely wounded soldier, and the blood supply dwindles; Simon runs into an old flame (Tia Carrere), a photojournalist who sparks his interest anew; Marks names Rebecca as morale officer; and Vans discovers a new talent.

A Romanian civilian suffers a brain hemorrhage and needs immediate neurosurgery, and Simon must talk Rebecca through the operation on a cell phone from a medevac helicopter; Bobby and Pedersen examine a high-ranking Air Force officer with insomnia who has an imminent critical mission.

A civilian wedding party is caught in Taliban crossfire and treated at Role 3; Marks gets a troubling call from home and discusses it with Pedersen; and Rebecca and Bobby sit in on Pedersen's group-therapy session, and Rebecca wonders if she shared too much.

A private serves as a lucky charm for seven wounded soldiers in his unit, who all survive their injuries without complications after he arrives. Elsewhere, Suzy Chao works with Bobby on his research and discovers his charms.

Rebecca withholds treatment to a soldier, but she comes to doubt her decision during an investigation into the incident. Adam Beach guest stars as Snake Eater.

Bobby makes a controversial decision to try to save a patient at all costs, and that decision opens a rift between the doctors and the nurses at Role 3 Hospital.

Vans' friend is injured in an explosion, and allegiances are called into question.