Joe 90 Catch up on the ITV Hub Sixties schoolboy spy drama. Young Joe can hold enormous amounts of information in his mind. Watch him put his superpower to work as he protecting humanity. 2 episodes available to watch Share this programme: Copied to clipboard Share on Facebook Share on Twitter Copy link to share Series 1 Latest 17. Three's a Crowd Joe 90 receives the brain patterns of a girl who has attracted his father’s attention. 1. The Most Special Agent A remarkable invention turns a nine-year-old boy into a secret agent.