Ranger Porter Ricks is responsible for the animal and human life in Coral Key Park, Florida. Stories center on his 15-year-old son Sandy and 10-year-old Bud and, especially, on their pet dolphin Flipper.
When artist draws a magic line, it takes on a life of its own, becoming a silhouette of a living hot-tempered person. This "Mr. Line" wants more things drawn so he can enjoy himself, but the artist loves having fun on Mr. Line's account.
In this revival of the charming Aussie series, Sonny Hammond is a park ranger with two children Jerry and Louise. The kids are involved in adventures that often have an environmental theme. Kate Burgess is a researcher at the habitat.