Episode 28·April 2, 1966·26 min
Deep Waters
When Porter dives into the depths with Ulla in her submarine for a survey of the ocean floor, the tiny craft snaps its propeller on the rocky coral stranding them under 50 metres of water.
When Porter dives into the depths with Ulla in her submarine for a survey of the ocean floor, the tiny craft snaps its propeller on the rocky coral stranding them under 50 metres of water.