Ranch owner Sally Jordan is engaged in a fence war with rancher Big John Trumbull. Hoppy and Johnny, along with trusty sidekick Windy, side with Sally Jordan. They control a huge cattle stampede by using dynamite.
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Cast:
William Boyd - Hopalong Cassidy
James Ellison - Johnny Nelson
George 'Gabby' Hayes - Windy Jenkins
Sidney Blackmer - John Trumbull