Shrimpers and oilmen clash when an ambitious wildcatter begins constructing an off-shore oilrig.

Wildcatter Jeff Dawson does his best to bring in a gusher in Mexico despite continual bandit raids. He asks for help from his ex-employer Ward Conway, but Conway, now married to Dawson's ex-lover Marina refuses, fearing that his wife will want to renew her romance with the other man.

When war breaks out between oilmen and cattle ranchers, Gene sides with the ranchers until he learns that oil will bring a railraod to town.

After gold shipments from a mining town have been hijacked, the three Mesquiteers buy a plane to fly the gold out. The owner of the shipping line brings in Eastern gangsters to thwart them.

In the American oilfields, a fugitive from justice's destiny is intertwined with the fortunes and the misfortunes of a small oil company that hires him as a roughneck.