- Prod. code
- SCA 21
- First air date
- January 14, 1968
- Running time
Colonel White sends the Spectrum team to Koala Base in Australia where three hovercraft have exploded. It could be sabotage caused by a traitor working for the Mysterons.
This is the voice of the Mysterons. We know that you can hear us, Earthmen. The Spectrum organization will be torn apart from within. The traitor among you will create havoc and destroy morale.
Characters in order of appearance 14
A Mysteron can be found with our detector, but a traitor is an ordinary man. He could be the man at your side. Much more deadly.
Come to bed, Phil. We've got a heavy schedule tomorrow.
Let's assume for a moment he's still in the hands of the Mysterons. Wouldn't something like last night's fire throw us all off the scent?
Not exactly the same. This time, the traitor is among us. Isn't he, Captain Scarlet?
All we can do is remain vigilant.