Another double bill of digitally-remastered episodes from Gerry Anderson's fifties subaqua science-fiction series.

6.00 Sea of Oil
The destruction of drilling rigs searching for oil deposits leads the crew of Stingray into an extremely dangerous situation.
(R) (S)

6.25 Hostages of the Deep
Commander Shore orders Stingray to respond to a distress call from a retired admiral, knowing that the crew is entering a trap.
(R) (S)

[NB this series was from the sixties not the fifties]