Porridge - Season 3 (1977)

Oily convict Harris has stolen some pills but he drops them and they land in Fletch's tea. There's big trouble from Grouty if the pills aren't replaced and, though Barraclough can provide some, they're the wrong size. Eventually replacements are found but in the mean time Fletch ends up swallowing the ones in his tea and learning that they are to cure the governor's dog's bad breath.

Fletch and Godber get a new cell-mate and Fletch is shocked to find it is elderly Judge Rawley, the man who handed him his five year sentence, now convicted of corruption. Though disappointed that Rawley has no dirt to dish on the governor, a friend, Fletch is protective towards him when the other prisoners decry Rawley's privileges. He also tells Rawley that if he had known he was bent he would have offered him a bribe.

When Rawley's watch is stolen the prime suspect is oily toe-rag Harris and so a kangaroo court is set up, presided over by the judge, with Fletch prosecuting and Warren acting as the defending counsel. Without any evidence, Harris is found not guilty, though he then admits to having the watch and relinquishes it. Rawley's appeal against conviction has been successful and he leaves the prison, giving Fletch the watch as a present for being his protector. Unfortunately Harris has taken its workings out.