On a cattle drive Hoppy, camp cook Windy, companion Lucky, and young Artie Peters encounter an eccentric professor. The professor professes to be searching for the evolutionary missing link, but in reality he is a cattle rustler who uses his dynamite to scatter the cattle in order capture some of them. Hoppy and Bar 20 guys ultimately capture the professor.
William Boyd
Hopalong Cassidy
George 'Gabby' Hayes
Windy Halliday
Russell Hayden
Lucky Jenkins
Nora Lane
Nora Blake
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August 20, 1937
1h 5m
6.3
Lesley Selander
Norman Houston, Clarence E. Mulford
3
Harry Sherman Productions
US
Paramount Pictures
US
Harry Worth
Horace Hepburn
Lois Wilde
Laura Peters
Billy King
Artie Peters
William Duncan
Buck Peters
Jack Rutherford
Blackie
Ernie Adams
Keno
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