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.pn