Hammy envies Turtle's ability to swim underwater, and decides to build a diving bell from an old school bell in GP's garage. He does it all himself, then proudly drives it through the woods and straight into the River. He talks to the fish and then realizes he doesn't know how to get it back up again, but GP comes to the rescue with his balloon.
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Ready to Watch Once Upon A Hamster, Season 4, Episode 12?