Joe McClaine is a 9-year-old boy whose adoptive father has developed a method of transferring specialist "brain patterns", and hence skills, into his son's mind. As a result, Joe is able to become a test pilot, brain surgeon, etc, as needed. Combined with his innocent appearance, he becomes an agent for the World Intelligence Network.
DVD Disc 1 Special Feature
The following sequence was produced to act in much the same way as the well-known "Captain Scarlet is indestructible - you are not..." warning sequence added to many prints of 'Captain Scarlet And The Mysterons' for television transmissions in the late 1960s and early 1970s.
However, the 'warning' sequence for 'Joe 90' had a twofold function, briefly reminding viewers of the primary series concept (that ordinary bot Joe McClaine becomes a top agent for W.I.N. only through the use of his special glasses which provide him with the brain patterns of professional experts) as well as subtly warning young viewers not to endanger their lives by attempting to emulate him in his daring exploits.
Voiced by actor Keith Alexander, the sequence originally appeared after main title sequence on many episodes transmitted in the UK between 1968 and 1977, although after that it was dropped from transmission in the 1980s and 1990s, and from all subsequent home video releases of the episodes.
The sequence is preceded by Keith Alexander's rehearsal takes of the dialogue.