Russel T Davies, long before he became the executive producer of the 2005 Doctor Who series, created several BBC series for the CBBC block, one of these was "Dark Season", a filler series designed to replace the then- absent "Maid Marian and Her Merry Men". Despite only lasting one season, the series stood out and is generally considered one of the greatest contributions to British children's television
Dark Season, in its one six-part season, contained two three-part adventures and featured strong similarities and characteristics found in Doctor Who; from the curious, enigmatic and meddlesome force for good: Marcie, to the sinister and malevolent: Mr. Eldrich, representing the dark nature of evil. This series looked at the young against the oppressive elder power, good vs evil and only one can ever emerge victorious when they clash.
The Behemoth, having evolved from war computer to sentient being over the years, is torn between a final stand-off between Marcie and Eldrich. Eldrich longs for control of it while Marcie fight to give the machine control of itself. As the deadlock tightens, Marcie's friends try everything to escape the area before the inevitable destruction occurs, and whilst doing so, come across a solution that could turn the literal tide in battle...