A bear threatens the park.
A doctor has contracted a deadly virus.
Rangers Cassidy and Harper save a little boy they're babysitting.
The rangers search for poachers.
Two firefighters from "Emergency!" learn about mountain rescue.
A politican puts the lives of his two young sons in jeopardy by having them attempt a dangerous climb.
Rangers Harper and Cassidy rescue a diver trapped underwater.
A forest fire threatens the lives of the rangers and campers.
Rangers Harper and Cassidy find a lost child.
The rangers fight a fire located near the redwood trees.
The rangers find an orphaned fawn and a blind child.