The yellow car with a small house on wheels loves very much to travel. Once he got lost in a strange city. Doc McWheelie comes to the rescue. She puts the GPS .\r
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In Doc McWheelies garage came the real TANK! Whats happened? Oh! Our Tank was very useful during the war. But now what can it do? Doc McWheelie can .\r
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Poor Little Caravan gets lost on Holiday! Luckily, Doctor McWheelie is here to rescue it and we discover about Space Satellite Navigation and how GPS works!