A gang of cagey owlhoots launches a smuggling operation with a twist: sneaking deported criminals back across the U.S./Mexico border in oil drums! Border patrol officer Tom Sharper (a pre-Lone Ranger Clayton Moore) learns of the scheme and is attacked by the crooks and develops amnesia, so his pal Roy Rogers rides in to help him and stop the outlaws' operation. Top-notch thriller also stars Gail Davis, Andy Devine, and Roy Barcroft. 67 min. Standard; Soundtrack: English.