Leaking radiation from an underwater fissure in the earth's crust turns a  scientist friend of Nelson's into a giant. The story also details Seaview's voyage to this scientist and the crew's encounters with underwater visions and visions of another kind when Karen Steele appears. Who could not like this episode? Despite being the most dated color episode, everything else is fine.

Mystery, adventure, science fiction, a great action climax, special effects and simply outstanding Alexander Courage music. And those William Welch attackers will think twice about putting down this man after watching Leviathan. Granted, not the most complex story in the world, but this is not The Outer Limits, it is something better, it is something that has images and music that remain locked in the memory for a life time. This is a show with real feeling ... it is very human.

Very human in a dated way as the show begins with helmet-hair styled Cara saying "I can't help being a woman". When Cara is on the Seaview we are treated with Crane saying that the control room is no place for a woman. The seamen then get into the act with lines like "Did you see him give her the eye?" and Crane saying "Nothing on her mind but business". Did I forget to mention that the men all stand when a woman enters the room and that Cara crys like a nine year old kid in the climax?

If you were born in 1956 you find all this rather charming but if you are like me - born in 1966 - you might find yourself feeling rather happy that women vanished from Voyage in the last two seasons. Then again, someone more modern like Valerie in Land Of The Giants would of been welcome. Don't get the wrong idea here, I love a bit of pointless seamen small talk, this actually greatly improved year three's Werewolf episode, but that was timeless, Leviathan is not. But enough sex talk, down to business ...

To me, Leviathan was a lost Voyage episode until 1992 when I got my hands on a copy. The climax has had an impact on my life ... seriously. I have been brainwashed by the sights and sounds of the climax when the fully dressed giant scientist grabs the Seaview with a shocked Admiral Nelson looking on in the flying sub. The wonderful music really captures the disaster of the scene. What is it about this bit? Maybe it captures what Voyage means to me ... Basehart, submarine miniature effects and music? Maybe? Is Leviathan my Citizen Kane? Despite the impact of this scene, it has a problem, the giant's teeth. Irwin is to blame, I read that! They say that Irwin demanded those stupid BIG teeth on the giant!

Thankfully, in 1967, the Irwin directed Land Of The Giants pilot - The Crash - got it right. A child picks up the earth spaceship and looks through the main window, but no big teeth here, this was outstanding direction! Leviathan may of been a show with problems, the giant effects in the sea lab don't look right and Stu the seaman is another dated element to the show, but all in all it is a show you just can't help but love. It is human and no human is perfect. Thank you.