City of Secrets

Rex, the brave dog, accidentally falls into the underground city of moles, where he's captured, and imprisoned for espionage. His fate would be foregone if not for his friend - the not so brave and not so clever mole Moles, who is definitely not an eager beaver to come to the rescue. Breaking Rex out of jail is just the tip of the iceberg. Moles will have to face a revolution and solve many riddles to save the day. Source: The Game Website.