John Stevens is the operator, pilot and sole stockholder of a one-plane airline who has been hired to pick up a valuable Chinese antique in San Francisco's Chinatown. The seemingly simple job proves to be worth the high price he offered as every underworld figure in town strives to finger him and hijack the prize - the Ming Lama. Johnny finds that his attraction for Lola Walker, whom he meets during his quest, proves a more useful weapon than his fists. Lola's talent with a gun, though misdirected, proves the edge he needs to fulfill his contract.