The Sarah Jane Adventures (TV Series)

The Last Sontaran: Part Two (2008)

Tommy Knight: Luke Smith

Quotes 

• 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.