I rate this episode ★★★★☆ for GOOD. Some episodes on CBSRMT are in the Drama-Mystery category. Some are in the Fantasy-Mystery category. This particular one, written by Percy Granger, falls into the SciFi-Adventure-Mystery category. It's amusing from start to finish and it gets more interesting as the scenes change. But the ending should've been better. The Resolution was there, but the Climax needed an epic, yet a dramatic scene for our main villain. Another way to Title this would be "Sitting On Top Of The World" because that's exactly where our story takes place. Or another Title: "Stark Raving Mad" because that's exactly what our main villain is feeling in this suspenseful tale. Speaking of suspenseful, the music tracks were the perfect fit as tension between scenes increased. And the sound effects of the howling wind, doors, footsteps, walking through the snow storm, rotary phone ringing, radio static, coordinates on the map, snow falling underground, the laser gun, dinner plate with a fish, fire sparks for the flint, opening the prisoner's door cell, and the ice breaking were the right sounds for this "chilling" tale. In his Prologue, E.G. Marshall brings up the topic of humans & our shifts through temperatures. In ACT-1, he mentions the Arctic & Polar regions and then later discusses Ice as an extreme form of water that must be avoided on principle; like he was trying to say water is the villain in this story. Then in ACT-2, he talks about glaciers and then later, trying to imagine the water flooding the whole planet. In ACT-3, he mentions the Earth flooding in the story of Noah, which was suppose to be a lesson and/or warning for the human race. But then, at the end of our final Act, he tells the story about a candidate who retired too early on election night, thinking he won as President. Someone telephoned and said, "He isn't President anymore." I don't know which President E.G. Marshall was talking about, but THAT was a great cautionary tale for anyone that thinks about planning to retire too early, just like our main villain did. In his Epilogue, he mentions a riddle by the Queen of Sheeba and King Solomon's answer involved the land beneath the Red Sea; it saw the sun before it was flooded with water, and this story almost came close to that end. E.G. Marshall's narrations were okay in the first half of the story, but he got better in the second half. But the best part of all, was this great cast: Tony Roberts (as Captain Joe Gates), Earl Hammond (as Wynn & Kullabak), Arnold Moss (as Raven & the Guard), and Ian Martin (as Colonel Edward Champ & Sonic). Tony Roberts definitely deserved this leading role; one of his best roles in this series. Kudos to Earl Hammond for playing a pilot & an eskimo. Kudos to Ian Martin as well for his acting credibilities; good as his writing. But I think Arnold Moss really stole the show for playing the main villain. He was like a cross between Vincent Price & Mr. Freeze. And the words he spoke in ACT-2, really gave me chills, like he was the type of villain we can never understand unless we walk a mile in his shoes and see how he's the dark hero in his dark world. Bravo, Arnold Moss! If you're a fan of Arnold Moss and/or a fan of Percy Granger, this is one episode that I'd recommend. Until next time…pleasant dreams. =0>