Steven and Peridot begin the mission to destroy the cluster! Subscribe to the Cartoon Network UK YouTube channel: Visit the Cartoon .\r
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Steven and the Gems head back to the family barn to build some robots. CN GAMES: SUBSCRIBE: WATCH MORE: .\r
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Steven communicates with the Cluster during Gem Drill! Subscribe to the Cartoon Network UK YouTube channel: Visit the Cartoon .\r
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The classroom gems explain how gems are made. Subscribe to the Cartoon Network UK YouTube channel: .