A Cyber-Lieutenant assisted the Cyber-Leader in their attempt to acquire the Nemesis in November 1988. With it and a fleet of thousands of Cyber-Warships, they intended to conquer Earth and turn it into New Mondas.

The lieutenant objected to the leader making reports to the fleet, to which the leader responded: "You are outside your function."

It and another Cyberman were about to kill Ace when the Seventh Doctor fired the rocket-sled's engine at them, destroying the lieutenant and his comrade. (TV: Silver Nemesis)

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