Criminals steal a death ray that concentrates the rays of the sun. The inventor's daughter and a government agent try to retrieve it. 18 episode adventure serial.
| Actor | Role |
|---|---|
 Elmo LincolnElmo Gray / Jim Gray | Elmo Gray / Jim Gray |
 Louise LorraineHelen Wade | Helen Wade |
 Monte MontagueBatt Hogan | Batt Hogan |
 Lee KohlmarProfessor Robert Wade | Professor Robert Wade |
 George B. WilliamsStanley W. Barrows | Stanley W. Barrows |
| JJenks HarrisCon Dawson | Con Dawson |
 Roy WatsonRodney Stanton | Rodney Stanton |
| FFred HamerBriggs | Briggs |
 Fay HoldernessStella Dean | Stella Dean |
 Bob ReevesNot listed | Not listed |