The first six episodes were a serial version of Jules Verne's 1870 novel Twenty Thousand Leagues Under the Seas, with adaptation by Ray Darby and production by Silvio Narizzano.
This was followed by The Moonstone, an 1868 Wilkie Collins novel adapted by Michael Jacot and produced by David Green.
[1][2] The next serial was "Roger Sudden" by Thomas Raddall, produced by Lloyd Brydon; this ran from 5 December 1952 until the following month.
[3] "The Mysterious Island" by Jules Verne ran from 30 January to 6 March 1953.
Episodes then moved to a Friday 7:30 p.m. time slot from 14 November 1952 to 6 March 1953.