Field Major Lenk was the leader of a Sontaran squad who was in a battle against another squad of Sontarans. He tried to execute the standing orders relating to the Fourth Doctor, but couldn't, when he was told that he was scared. He was wounded when a savage Sontaran attacked him. He couldn't remember how long the battle was going on. He told Romana II that on this world, the dead arose to attack. He was wounded in an attack and Romana tried to help him. (AUDIO: The Eternal Battle)

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