Luke eventually escapes from the Slitheen but the bigger problem is Mr. Smith, who is trying to kill Sarah Jane and her neighbours. However, help comes from an unexpected quarter, K9, Doctor Who's old robot dog, who now lives with Sarah Jane,and who keeps Mr. Smith busy in combat while Alan prepares the virus that eventually shuts down Mr. Smith and returns him to being Sarah Jane's benevolent helper, whilst the Slitheen escape empty-handed. Written by
don @ minifie-1
Did You Know?
John Lesson, who is the voice of K9, got his second big computer to computer action fight in this episode when he fights (as K9) with Mr Smith. K9's first fight with a computer was with the robot parrot in the Doctor Who episode, "The Pirate Planet", 1978. K9 was victorious in both battles. See more
Intruder, perimeter defenses have been armed. Any attempt to escape may result in death. You have been warned
Sarah Jane Smith
[points sonic lipstick at laser grid and disarms perimeter defenses
References Star Trek