Thunderbirds are Go - 'Runaway' and 'Eos'

It's Brains!

When a computer fault plays havoc with a high-speed train, Scott drags Brains into the danger zone for some breakneck engineering in 'Runaway'. While one resident genius is working on the hardware, John Tracy has at the software, revealing a hidden knack for the fundamentals of algorithms and code (although the episode also shows Alan, the youngest Tracy, being pushed through a pretty demanding home school curriculum.) Naturally, disaster is averted, but the fault is traced to the actions of a rogue AI based on code which John wrote himself.

"Rotate the pod bay doors please, Eos."

In 'Eos' the AI reacts to John's attempts to find it. Designating him a threat based on his intelligence and familiarity, the AI - adopting a feminine voice (and yes, it's Theresa Gallagher again) and the name Eos - hacks aboard TB5 and goes all HAL 9000 on him. After a scramble to disable Eos before she can get back to Earth and spread unrestricted, John gets into a position to destroy her, but instead opts for a more touchy-feely approach, essentially adopting her as a partner and companion to help him run TB5.

These two episodes cause me serious concern for the emotional well-being of the Tracy brothers. They appear to have spent most of their lives on an island, being rigorously home-schooled by their father and grandmother (and possibly Brains, and Kirano senior for a time,) with only one peer outside their immediate family. Kayo is the only female company most of them ever have (I'm assuming here that they are all straight, largely because it's a mainstream animated series, but honestly it would be even worse if they weren't; can you imagine being gay on an island with no guys your age and only your brothers to come out to?) and she certainly seems to view them all as brothers. Possibly Lady P, although she seemed to have a thing with Jeff in the original, for all she's been youthed here, so that just feels weird. Small wonder they all seem to go a little glassy eyed when faced with sexy female disaster victims, stranded crane drivers, slightly murderous mercenary mine owners and artificial intelligences.