When Big Fish Die

April 16, 1971

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Barrier Reef - S1 - E10

Exploring an underwater oil field near the Great Barrier Reef, the mini-submarine crew strikes new danger - an ear-splitting, high-frequency sound that kills fish, and even disables the Minus Five electronic equipment.

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Barrier Reef: Season 1 - 39 Episode s

1x1 - Rendezvous
February 12, 1971
A high ranking Government official makes a secret visit to the Endeavour to determine whether General Trust Corporation may use it's Minus Five equipment to commercial advantage without affecting the natural heritage of the Great Barrier Reef. The project is placed in jeopardy when, riding in the mini-submarine, he nearly loses his life. Dr. Paul Hanna, of the Government Science Council, joins the team on board the Endeavour.
1x2 - Galleon
February 19, 1971
A Spaniard tricks the Minus Five team into using their equipment to locate a sunken galleon which, he says, carried a fortune in gold. His real reason is to prove a Spaniard discovered the Australian coast before Captain Cook.
1x3 - Something Beginning with M
February 26, 1971
An industrial spy gets aboard the Endeavour to photograph the top secret equipment, but he turns out to be not such a bad bloke when he realises his methods endanger Captain King's life.
1x4 - Strange Cargo
March 5, 1971
The Minus Five team discover a murdered man in Barrier Reef waters, and he is buried on a small, lonely island. He is to be exhumed by the police, but when Sgt. Davies goes to the grave the body is missing, and the Minus Five team land in a strange network of intrigue.
1x5 - The Pewter Chalice
March 12, 1971
Two nuns ask the Minus Five team to help them recover a sacred chalice lost in a wreck off the Great Barrier Reef, but Captain Ted King reluctantly declines assistance as the Endeavour is under orders for another assignment. The nuns risk their lives when they decide to attempt the salvage job themselves.
1x6 - The Cannon Of Nemora
March 19, 1971
The Minus Five team has salvage rights to a vessel sunk off the Barrier Reef in the 1800's, but when they arrive they find divers down below. The gold disappears and it seems it has been stolen from under their noses. A cannon from the wreck and an old log book must be found before the mystery can be solved.
1x7 - The Pirates
March 26, 1971
Tense moments mix with comedy when three students capture the Endeavour and, thinking the crew are spies, plan to hand them over to the police.
1x8 - Old Gold
April 2, 1971
Old Harry tells Steve Gabo about two million dollars of gold coin carried on a plane lost during World War 2, which he has been trying to locate for years. The Minus Five team begin a search and find more than they bargained for - two skeletons, and two armed men who could be murderers, but who are in fact Commonwealth Police.
1x9 - Slipway
April 9, 1971
The Endeavour puts into a slipway in Townsville for inspection and maintenance, and the crew welcomes Diana Parker, the charming new operator for the Minus Five equipment. But there are shocks in store for all as Diana is discovered to be an impostor, and one of the diving crew narrowly escapes death.
1x10 - When Big Fish Die
April 16, 1971
Exploring an underwater oil field near the Great Barrier Reef, the mini-submarine crew strikes new danger - an ear-splitting, high-frequency sound that kills fish, and even disables the Minus Five electronic equipment.
1x11 - Russians Are Red
April 23, 1971
The Minus Five team become involved in political intrigue when a defector from a Russian ship asks them for political asylum in Australia. Steve Gabo takes his side, until he learns the Russian is not a refugee, but a thief.
1x12 - Cyclone
April 30, 1971
The Endeavour runs before Cyclone Ada, which devastates tourist resorts on the Great Barrier Reef and towns on the North Queensland coast. After the disaster, the Minus Five team return to the area to search for survivors, and play an important role in rescue work.
1x13 - Assignment in Shute
May 7, 1971
The Endeavour crew are assigned to search for a fishing launch sunk during the cyclone. They plunge into a murder mystery when in the cabin they find a body with a knife in his back.
1x14 - Thursday Girl
May 14, 1971
A beautiful young girl from Thursday Island stows away on the Endeavour, claiming Jack Meurauki has promised to marry her. Hiding the girl from the Captain proves a major problem.
1x15 - Nothing But The Truth
May 21, 1971
Minus Five picks up uranium readings which appear and disappear. A trawler hauls in a catch of fish which could be radioactive, but a more important 'catch' is contested with spear guns under the ship as the Endeavour crew stumble upon uranium smugglers.
1x16 - White Death
May 28, 1971
The Endeavour is assigned by the government to chart unknown channels in the Barrier Reef. A man once badly mauled by a white pointer shark seeks revenge in the shark's breeding ground and endangers the lives of the Minus Five divers.
1x17 - Echoes From The Past
June 4, 1971
The Minus Five team is commissioned by the Royal Australian Navy to locate and chart a mine field off the Barrier Reef. During the trip, Captain Ted King risks his life to rescue one of his crew trapped in the mine field, while mines are breaking loose from the rusted cables and menacing the ship.
1x18 - A Matter of Money
June 11, 1971
The Endeavour's attractive new scientist learns a bitter lesson in security when she innocently arranges passage to Townsville for a colleague. Customs officer Morgan and the Minus Five team are held at gunpoint by the passenger who demands the surrender of counterfeit money plates which have been discovered attached to the ship's hull.
1x19 - Scotch on The Rocks
June 18, 1971
A wreck with a cargo of whisky hangs precariously on a ledge on the Reef. A puritan Scotsman plans to destroy the cargo, and a drunken beachcomber warns the Minus Five team, who are working to retrieve a new navigational aid from the wreck. The navigational aid must be assessed, for if it is defective it could endanger the other five ships it has been issued to, but their work is hampered by the old Scotsman who is determined to destroy the whisky before it can cause any evil.
1x20 - God Bless Her
June 25, 1971
A mad scientist, intent on preserving the Barrier Reef from exploitation, plants explosives aboard the Endeavour as the crew wait to welcome the Royal Britannia during the Royal Visit to Townsville.
1x21 - Let Sleeping Dogs Lie
July 2, 1971
A Japanese submarine sunk during World War 2; a Shinto burial service; and the unusual interest displayed by a Member of Parliament plunge the Minus Five team into a new mystery on the Barrier Reef.
1x22 - Sea Fever
July 9, 1971
A strange illness threatens the life of three people on the Great Barrier Reef when an old scientist loses control of dangerous research into the effects of radiation on the cycle of marine life.
1x23 - Shark Bait
July 16, 1971
A wealthy fisherman hunts for a world record size shark, and baits an area with bloody meat. One of the Minus Five divers becomes trapped by a thrashing shark pack attracted by the bait.
1x24 - The Tripod
July 23, 1971
The owner of an illegal fishing fleet is desperate when the Minus Five team find a strange tripod on the sea bed which is his early warning system. He sends out a bogus distress signal to lure the Endeavour away from the area.
1x25 - Coconut Ice
July 30, 1971
The idea of icebergs in the tropical waters of the Barrier Reef at first amuses the Minus Five team, but the situation becomes grim when the icebergs prove to be real and a threat to shipping. Captain Ted King asks the inventor of the icebergs on board the Endeavour to join the team.
1x26 - Moon Shot
August 6, 1971
A deadly, radioactive 16½ inch cylinder, released into the sea near the Great Barrier Reef from the crippled spacecraft Apollo 13, must be recovered and contained before the whole area becomes a graveyard. The assignment is given to the Minus Five team.
1x27 - The Speckled Stone Fish
August 13, 1971
A bizarre attempted murder by the Mafia can only be prevented by a marine biologist and the Minus Five team working together. They must catch a deadly stone fish alive so that an antidote can then be made to save the dying man.
1x28 - The Old Skipper
August 20, 1971
An ageing sea captain who was the original skipper of the Endeavour determines to scuttle the ship so they can die together. Alone with him on the ship, Tracey Deane tries to change his mind.
1x29 - Sell Out
August 27, 1971
One of the Minus Five team acts as bait to catch a company official selling classified information about a newly discovered nickel field on the Barrier Reef.
1x30 - Black Diamond
September 3, 1971
The Minus Five team find an unconscious diver in the water and another on the sea bed. Attempting a rescue, one of the team gets nitrogen narcosis and tries to give a shark boxing lessons.
1x31 - The Tunnel
September 10, 1971
When the roof of a cave below the Great Barrier Reef collapses and traps one of the Minus Five divers, the others have to work against time to rescue him.
1x32 - Sanctuary Cay
September 17, 1971
The Minus Five team clash with big business wanting to exploit a tropical island, even though it would mean the extinction of millions of protected seabirds.
1x33 - The Missile
September 24, 1971
A live missile embedded in the coral reef makes a dangerous proving ground for a celebrated Royal Australian Navy diver who has lost his nerve.
1x34 - His Majesty Regrets
October 1, 1971
A monster turtle and a blonde diver girl form a strange alliance to frustrate the Minus Five team's latest assignment.
1x35 - Voices In The Deep
October 8, 1971
Foreign voices are heard by Kip over the radio as he searches below the Endeavour for one of his tools. The Minus Five team are challenged by strange divers who accuse them of spying.
1x36 - Pilgrims Progress
October 15, 1971
A desk-type security agent involves the Minus Five team in a dangerous duel with jet-boats when two men are discovered tapping an undersea cable and selling information to a foreign power.
1x37 - Oysters Never Tell
October 22, 1971
The Minus Five team play cops and robbers with a pearl smuggler, and one of the team becomes trapped in an underwater cave.
1x38 - Bird Cage
October 29, 1971
The Minus Five team become involved in a lover's quarrel, which quickly turns very serious when the girl involved is trapped in a cage on the sea bed, and all evidence points to attempted murder.
1x39 - The Fence
November 5, 1971
The Minus Five team need all their skill to locate and rescue Kip Young, who has been overcome by the energy force of a sonic fence which was laid to warn submarines approaching the Great Barrier Reef. (Final episode of the series.)

Barrier Reef: All seasons

S1: Season One
39 Episode s

1x1 - Rendezvous

1x2 - Galleon

1x3 - Something Beginning with M

1x4 - Strange Cargo

1x5 - The Pewter Chalice

1x6 - The Cannon Of Nemora

1x7 - The Pirates

1x8 - Old Gold

1x9 - Slipway

1x10 - When Big Fish Die

1x11 - Russians Are Red

1x12 - Cyclone

1x13 - Assignment in Shute

1x14 - Thursday Girl

1x15 - Nothing But The Truth

1x16 - White Death

1x17 - Echoes From The Past

1x18 - A Matter of Money

1x19 - Scotch on The Rocks

1x20 - God Bless Her

1x21 - Let Sleeping Dogs Lie

1x22 - Sea Fever

1x23 - Shark Bait

1x24 - The Tripod

1x25 - Coconut Ice

1x26 - Moon Shot

1x27 - The Speckled Stone Fish

1x28 - The Old Skipper

1x29 - Sell Out

1x30 - Black Diamond

1x31 - The Tunnel

1x32 - Sanctuary Cay

1x33 - The Missile

1x34 - His Majesty Regrets

1x35 - Voices In The Deep

1x36 - Pilgrims Progress

1x37 - Oysters Never Tell

1x38 - Bird Cage

1x39 - The Fence

S1: Season One