Rogue's Rock - Season 1 (1974)

Rogue's Rock is a small island off the coast of Britain which has been governed by a member of the Rogue family for centuries. Katy Rogue arrives from New Zealand to research her family history, but finds that her uncle, Commander Rogue, is in charge of an impoverished island. A chance discovery at the cemetery, however, could mean a change in the island's finances. Meanwhile Professor Jane Steele arrives from the mainland to investigate reports of strange phenomena in the sea-life in the island's coastal waters.

Valuable minerals have been found on Rogue's Rock and so jurisdiction of the island falls under the UK Ministry of Defence, which plans to clear out the residents and claim the island's riches for the Treasury. Meanwhile a team of deep sea divers investigating claims of mutated fish in the waters surrounding the island uncover ancient bronze Viking runes that give Commander Rogue a surprising degree of power and autonomy over the Ministry.

Westminster wants to keep Rogue's Rock as part of Britain in order to make proper use of its resources and sends Sir Jocelyn Foot-Crankshaw to hold summit talks with Commander Rogue and his 'cabinet' to negotiate the island's status. Meanwhile a diving expedition discovers a hoard of gold treasure and the residents are determined to keep the find a secret.