Managua is on the verge of civil war. Arrested by order of President Sanchez, Buck and his friends have managed to convince the pilots of the Managuean Air Force that their nation's leader is in the pockets of drug cartels. With the assistance of the unit they'd come to train, Buck escaped to request assistance from US authorities. Meanwhile, Sonny and Tumb will have to help their rebel allies fight back loyalist forces and Lady X's mercenaries.