Jack Webb's latest effort turns to park rangers filmed at Yosemite National Park, offering the viewer a mix between the Emergency formula and the Disney hour, introducing Cruncher, the bear, a personality with food on his mind. Rangers rescue mountain climbers and settle disputes between campers as Cruncher pops in-and-out of the action, raising cain and foraging among garbage cans. The handsome Yosemite location footage is the best thing about the show.

Dr. Emory Martin is afflicted with a contagious and deadly virus, accidentally.

A precocious youngster, saves the lives of park rangers Cassidy and Harper (James G. Richardson and Ernest Thompson) when they baby-sit for him.

Rangers set out on a desperate search for Chief Ranger Jack Moore when he is seriously injured while visiting his "secret" fishing hole. The rangers follow the trail of poachers who are preying on the park's deer population.

Paramedics Gage and DeSoto travel to Sierra Park to study mountain rescue methods.

A fiercely proud man, running for the Senate, pushes his two teen-age sons into attempting a record-breaking climb of a cliff, with near disastrous results.

Rangers stalk a furious bear that has managed to become trapped in an old automobile tire. People rescued include a camper stuck in a sleeping bag, and a diver pinned underwater when a boulder falls on his leg.

The rangers spend two tortuous days leading campers out of leading campers out of a forest fire which threatens to trap them all.

Rangers scour the park in a tense search for a missing child; and Tim and Matt devote themselves to charming three pretty vacationers who are stranded in the park after a car accident.

A savage bear attacks a group of campers and a careless child fires a flare into a giant redwood tree.

An orphaned fawn and a blind child lost in the forest keep rangers Matt Harper and Tim Cassidy busy.

"Park Rangers." This was the pilot film of the ill-fated "Sierra" series. It never was shown before the series got under way, but the series was off the air then, an early victim of cancellations. The rangers deal with a snowstorm, injured skiers, and frisky bears. (90 min).