Season 1

King and Castle are asked to trace a man who has sawn his house in half following the break-up of his marriage. Meanwhile, a local villain has a score to settle with King.

A bereaved family hire King to find a substantial some money that disappeared after their relative died in a car crash.

A man called Devas hires King and Castle to secure debts owed to him by a Rodney Finch-Courtney.

King and Castle turn detective when the friend of a man they are chasing for large debts is imprisoned for a robbery he did not commit. This episode featured Terence Morgan's last ever acting role; it was noted that he gave a 'haunting performance'

Castle purues a woman for £10,000 of debts, but King finds himself attracted to her. King discovers Medley's long-lost son.

Castle deals with a child custody case. A rival debt collection agency moves into the area and successfully employs strong-arm tactics.