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| - The World Navy are testing gyropedoes in the Atlantic Ocean near the drilling rig, when one of the gyropedoes - fired from the atom sub Reaper - ignites a gas field beneath the sea bed. The gas eventually breaks through, shooting columns of flames above sea level and high into the air. AI428.png|The gas field ignites AI433.png|The sea bed bubbles AI431.png|Shooting columns! Feeling themselves in danger, Frank and Dick go down in a diving bell to check the damage, after one of the drilling rig's legs is fractured. AI436.png|The diving bell AI432.png|The leg crumbles AI438.png|Fractured! Another explosion causes the rig to slip further and the diving bell crashes to the sea bed. AI437.png|Checking the damage AI441.png|The bell hits the sea bed AI442.png|Trapped! 48_trapped.png| AI440.png| AI439.png| Scott launches Thunderbird 1 and 2, and Alan, Virgil and Gordon fly to the danger zone. Time is running out, as the next place that the fire will spread to is Seascape's bore hole. Alan lands Thunderbird 1 on Seascape. 38_TB2.png|Thunderbird 2, arriving with Thunderbird 4 Ss14.png|The rig slips further into the sea 44_tb1.png|Alan lands Thunderbird 1 on the deck Gordon goes down to the diving bell in Thunderbird 4. Seascape collapses even further and Alan has to lift Thunderbird 1 from the rig to prevent it from sliding into the ocean, Gordon cuts through the diving bell's cables with Thunderbird 4's laser beam equipment before clearing the debris, attaching magnetic grabs to hoist the bell to the surface and getting clear just as Seascape explodes in flames. Thunderbird 2 completes the rescue by picking the bell from the water with its magnetic grab. AI525.png|Pod 4 is dropped on the sea AI520.png|Thunderbird 4 is launched AI521.png| 46_TB4.png|Thunderbird 4 clears the debris 40_TB4.png|Laser beam cutting equipment 41_TB4.png|Cutting through the cables 42_TB4.png|Gordon working against the clock 47.png|Thunderbirds 4's magnetic grab 53_TB4.png|Lifting the bell to the surface 57_TB4.png|Waiting for Thunderbird 2 to lift the bell AI601.png| 55_TB4.png|Thunderbird 2 lifts the bell from the sea The rest of the crew (at least 16) were safely lifted from the rig by World Navy Helijets.
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