Iggy Arbuckle is a young white pig, who is the creator of the Pig Rangers, a type of forest ranger in a national park known as the Kookamunga. Stu, a catfish, is always trying to use the Kookamunga to obtain wealth with the ferret brothers. Most of the stories revolve around Iggy and Jiggers' efforts to protect the environmental structure of the park.

A team of expert mountain rangers put their lives on the line to save stranded trekkers, solve haunting mysteries and protect Jirisan National Park.

Sierra is a short-lived 1974 television crime drama series focusing on the efforts of National Park Service rangers to enforce federal law and to effect wilderness rescues. The program aired on NBC and was packaged by Jack Webb's Mark VII Limited for Universal Television. John Denver wrote the show's theme song. Robert A. Cinader, executive producer of Mark VII's Emergency!, handled this program also; Bruce Johnson produced.

At the Northern part of Xinjiang, two policemen were killed by a group of poachers and the prey were nowhere to be found. Five years later, Wei Jiang left the the police station in the forest, and chose to become a protector of the borders. By chance, he becomes Qin Chuan's teacher, and leads him on the path of patrolling. They meet the local vet Ye Xiao Wan, as well as leader of the animal activist group Sai Na. Together, they found the traces of the poachers, and began a fierce battle with them. Finally, the poachers were caught, and justice was served.