Scenes in the interior of two Armoured Control Vehicles near Medjez El Bab.

Panning shot from a radio operator receiving a message to the operator handing the message to a G3 who relays the message by telephone to the forward troops. Close-up of the radio operator receiving the message. Two officers on the telephone, one turns and marks up a reference on a map of Tunisia of the enemy position. Three telephone operators receiving and filing messages. Close-up of a telephone operator sending a message by morse. Three telephone operators at work. Close-up from the rear of a telephone operator at work on a switchboard in an Armoured Control Vehicle (ACV). An officer receiving and sending signals by radio transmitter to aircraft. He informs them of the latest forward positions and marks the position on a map.