Spoilers of the Plains

Costar Penny Edwards helps introduce this 1951 film, with Roy Running and oil pipeline near an experimental rocket station headed by Dr. J.D. Manning (William Forrest), assisted by his daughter, Frankie (Penny). Bogus oilman Gregory Camwell (Grant Withers) gains access to the camp, under the pretext of keeping the scientists supplied, but he's really stealing oil from Roy's pipeline and plotting to destroy the camp with nitro. (official distributor synopsis)