Dennis & Gnasher Unleashed!

Get Lost (1x49)

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The gang get lost in the woods and stumble into the Land of Lost Things, where Gnasher gets dognapped by a Gnashersaurus rex which has lost its beloved egg. To save Gnasher they have to rely on Pieface logic to reunite the G-rex with its egg before Walter makes a record-breaking giant omelette with it.