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"Upsidaisium"
Rocky and His Friends episode
Episode no. Season 2
Episode 1 (90 segments)
Directed by Gerard Baldwin
Pete Burness
Bill Hurtz
Gerry Ray
Bob Schleh
George Singer
Ernie Terrazas
Written by George Atkins
Chris Hayward
Chris Jenkins
Lloyd Turner
Produced by Ponsonby Britt
Production code 53–88
Original air date September 25, 1960 (1960-09-25) - January 22, 1961 (1961-01-22)
Episode chronology
← Previous
"Box Top Robbery"
Next →
"Metal-Munching Mice"
List of Rocky and Bullwinkle episodes

Upsidaisium is an exciting adventure story from the second season of Rocky and His Friends. This long story arc, with 36 parts, follows the famous duo, Rocky the flying squirrel and Bullwinkle the moose. They try to get back Bullwinkle's uncle's special mine. The story was first shown on ABC television between 1960 and 1961.

The Search for Upsidaisium

This adventure begins when Bullwinkle gets a letter. It tells him that his uncle Dewlap has passed away. His uncle left him a mine located on a place called Mt. Flatten. Rocky and Bullwinkle decide to go find this mine.

Spies and Secret Agents

As they travel, Rocky and Bullwinkle soon realize they are not alone. They are being watched by their old enemies, Boris Badenov and Natasha Fatale. These two spies work for the sneaky country of Pottsylvania.

But there's another person watching them too! It's their friend, Captain Peter "Wrong Way" Peachfuzz. He is now in charge of a special government group that deals with important secrets. Captain Peachfuzz has been sent to make sure Rocky and Bullwinkle find Mt. Flatten.

The Amazing Anti-Gravity Metal

Why is Mt. Flatten so important? It's because of a very special metal called Upsidaisium. This metal has anti-gravity powers, meaning it can make things float! The U.S. government really wants this metal.

Boris and Natasha pretend to be regular prospectors, looking for valuable minerals. They manage to help Rocky and Bullwinkle find Mt. Flatten. The mountain itself floats high in the air because it has so much Upsidaisium inside it.

Mr. Big's Plan

Once they reach the floating mountain, Boris and Natasha are joined by their boss, Mr. Big. He is a very intimidating person. Mr. Big explains that Pottsylvania also wants Upsidaisium. They plan to use it to solve their traffic problems by building cars that can float!

Thanks to Rocky's clever ideas, Mt. Flatten is moved all the way to Washington D.C. The government then puts the valuable Upsidaisium in a very secure place.

The Final Showdown

However, Boris tries to sneak some of the precious metal away from the government. He even dresses up as a U.S. general to do it! Rocky and Bullwinkle are cornered by Mr. Big. But when they try to fight him, they discover he is actually a very tiny person!

Mr. Big manages to escape into a vault where the Upsidaisium is stored. Boris and Natasha are finally arrested. Mr. Big grabs a piece of Upsidaisium and tries to use Rocky as a hostage. But the anti-gravity metal lifts him into the air, and he floats away, never to be seen again. This leads to another happy ending for Rocky and Bullwinkle!

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