Gibbs and the team are called in on a weekend when a Navy Lt. Commander in charge of a shipment of nuclear weapons is apparently abducted. The team works to piece together the Lt. Commander's location by tracking a distress call she made from her cell phone. Believing her captors have abducted the Lt. Commander to commandeer the nuclear shipment, NCIS must move quickly to find the missing woman and protect the classified location of the weapons.