PALS OF THE SADDLE (1938)

FOREIGN AGENTS ARE SMUGGLING MONIUM (A CHEMICAL USED IN PRODUCING POISON GAS) INTO MEXICO. THE THREE MESQUITEERS GET INVOLVED WHEN THEY RIDE TO SAVE A GIRL (REALLY A GOVERNMENT AGENT) ON A RUNAWAY HORSE. STARRING JOHN WAYNE, MAX TERHUNE, DOREEN MCKAY, RAY CORRIGAN.