Theory:K9 television discontinuity and plot holes/The Last Precinct


 * Thorne aks Darius to convince K9 to give Thorne a circuit which he tells him is the cybernetic equivalent of the appendix. Though Darius should know full well that Thorne intends to take K9's regeneration unit as he was present when Thorne revealed he was planning to take it in Robot Gladiators.