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First broadcast at 06:20 2 Dec 2011
All the services join forces to find Martin, Mia and Jumpi, but the children are very clever and do something to make it easier for them to be discovered.
Abby the ambulance is missing a packet of bandages.
Martin and Mia deliver lunch.
Kimmy loses her postbag on her rounds.
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Channel 5 Broadcasting Ltd. 2015