sentences:  This skill makes him useful to the Security Forces, and the chance to end Stron-Domez's threat gives Charlie a reason to help them.After a botched contact with the British Army, the Security Forces track Stron-Domez to an electronics factory in Birmingham, where Stron-Domez has taken the workforce hostage, and forced them to build more Robo Machines for him.The Security Force robot Truck and Charlie are able to free the humans, and the Security Forces move in and rout Stron-Domez’ forces.