Synopsis
When Joe invents a new super battery, it catches the attention of Professor Polonium and her trusted but rather silly sidekick Dr Crumpton.
Cast
John HaslerArnold / James (voice)
Tegwen TuckerPenny / Sarah / Bronwyn / Mrs. Chen / Teleprinter / Map-Screen 700 (voice)
Harriet KershawEllie / Bella / Scoop Dooley (voice)
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