Ray Taylor directed Richard Talmadge, Lucille Lund and Walter Miller (as the hero, love interest and villain respectively).

Aviator Dick Moreland uses his winnings from a recent flight to fund an expedition to recover treasure buried by his pirate ancestor.

Unable to retain the map, Brasset joins the expedition (his identity as the villain unknown to the protagonists) with henchmen hidden aboard.

[1] Due to its eerie background and the stunt work of Richard Talmadge, Cline considers Pirate Treasure the most memorable of the costume serials.

[1] Hans J. Wollstein at Allmovie does not consider the acting or writing to be of a high standard but praises the stunts: "Talmadge's acrobatics are as exciting today as they must have been in 1934."