Stephen Gregory

Having been discharged from the Marines for a hayfever condition before ever seeing action, Woodrow Lafayette Pershing Truesmith delays the return to his hometown, feeling that he is a failure. While in a moment of melancholy, he meets up with a group of Marines who befriend him and encourage him to return home to his mother by fabricating a story that he was wounded in battle with honorable discharge.

Blackie and gal pal Mary, and their dog Whitey, solve lots of Los Angeles crimes before the cops can do it.