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launch in 2009, is an Australian production for the Nine Network and CBBC in the U.K. It follows the adventures of a mischievous boy, Dennis, and his faithful dog, Gnasher. Watch clips and access ...

With the help of some suspicious ancient deeds Walter seizes Dennis' treehouse and claims it for his own. Dennis and co smell a rat - but they must first outsmart their own booby traps and break in to ...