Clyde Langer: First time in my life I wish I carried a lipstick.
Alan Jackson: Mr. Smith... I need you.
Mr. Smith: Oh, Mr. Jackson. This is a surprise.
Alan Jackson: It's that sort of a day.
Mr. Smith: Sontarans are a clone species originating from the planet Sontar. They are fearless, well-trained, strategically intellectual and immensely strong.
Luke Smith: But can they be beaten? They must have a weakness.
Mr. Smith: Sontarans do not eat food. They intake pure energy by means of a probic vent at the base of their skull. This point is their sole weakness.