Voyage to the Bottom of the Sea
Season 3 Episode 13
"The Lost Bomb"
First aired 11 December, 1966
An unfriendly government shoots down a cargo plane carrying a new top secret bomb. The race is on to retrieve the bomb and avoid detection from the enemy before the bomb can be accidentally exploded.
(Apparently, naming the enemy sub "Vulcan" didn't register in Irwin Allen's mind as a plug for a competing TV series on another network.)
This episode is a recording from a recent broadcast of an HDTV-transferred and restored film. Additional audio and video augmentation by TooleMan TV, 2023.