Air Transport Company pilot Baker wants to find the Wrecker, but with a host of suspects, it will be difficult, since the murderer can disguise himself to look like almost anyone.

[3] One of the main suspects in the train crashes is Walter Gray, the airline manager and Larry's boss, who stands to gain if the L & R Railroad loose contracts.

The continuing attacks on the L & R Railroad put Gloria and Larry in danger, but they are determined to bring the Wrecker and his gang to justice.

Source:[4] During the 1930s, after starring in The Big Trail (1930), its subsequent commercial failure meant that Wayne was relegated to minor roles in A-pictures, or starring, with his name over the title, in many low-budget Poverty Row Westerns, mostly at Monogram Pictures and serials for Mascot Pictures Corporation, such as The Hurricane Express.

[7] The aircraft flew from the Grand Central Airport in Glendale, California, a favourite locale for Hollywood films featuring aviation.