Isso soa como Earthsearch por James Follett, transmitido pela primeira vez pela BBC Radio 4 em 1981 / 1982, mas talvez repetido depois.
Há um pequeno grupo de jovens em uma nave espacial, suas vidas são controladas por computadores:
From infancy, the four third-generation crew members (now in their early twenties) have been raised by robots and by the Angels – mysterious unseen beings who run the ship and who only manifest as disembodied voices. [...] the ruthless, manipulative control of the Challenger's megalomaniacal control computers, Angel One and Angel Two.
E há uma estrutura enorme que eles precisam para resolver um quebra-cabeça:
The only sign of life is a huge ten-mile-high tower on the equator, with a tiny village nearby. [...] The crew examine the tower, finding that there is a door set into one side which cannot be opened. Peeron says that many of his predecessors have made attempts over the centuries – for example, by hitting the door with battering rams – but it will not budge. It is said that it is held shut by a "lock of knowledge". Darv eventually works out how to open the ingeniously simple lock, which requires a low grade of technology which would only be available to people who have already worked out basic principles of science and engineering.
(Citações do artigo da Wikipedia.)