Nick Garcos returns to his home in Fresno after a long sea voyage working as a mechanic and is welcomed home by his parents and girl friend, Polly Faber. Nick, who has saved a lot of his pay and plans to go into business with Polly's father, is unaware that his father has lost his legs in a truck accident, which appears to have been arranged by Mike Figlia, a crooked fruit and produce dealer in San Francisco. Money allegedly paid to Mr. Garcos by Figlia was also "lost" in the accident. Unable to work, Nick's father sold his damaged truck to Ed Kinney, who patched it together but still owes money on it. Nick suggests that he and Ed go into business together to truck a new crop of apples into San Francisco, and Ed cancels an agreement he made with two other truckers, Slob and Pete. Nick and Ed acquire another truck and head for the apple orchard. When Ed tries to cheat the orchard owners, Nick tells him to honor the deal he made. Slob and Pete then show up at the orchard and, not pleased about the new partnership, follow Nick and Ed with a load of their own. Nick's truck blows a tire and, as he tries to jack the truck up, it falls on him. Ed stops, pulls Nick out and repairs the flat, and they continue on. Nick arrives first at the San Francisco produce market and goes to see Figlia. After Nick's truck is sabotaged in front of Figlia's place, he meets Rica, a girl who works for Figlia, at a lunch counter in the market. She invites him to rest in her nearby apartment, and while he is there, Figlia has Nick's truck unloaded and begins to sell the apples on consignment. However, when Nick discovers that Figlia is selling the load at $6.50 a box but intends to pay him substantially less, he demands and receives cash and a check for the full amount. He then phones Polly and asks her to come to San Francisco so they can be married. Nick buys Rica a drink to celebrate his sale, and she tells him that Polly is probably marrying him for his money. As they walk back to the market, Nick is attacked by two of Figlia's thugs, Mitch and Frenchy, and Rica picks up his wallet and runs off. Nick, thinking that Rica was in league with the thugs, goes looking for her. However, the thugs find Rica first and take the wallet. Meanwhile, Ed's truck starts to fall apart on a steep downhill slope, then crashes and bursts into flames with Ed trapped inside. When Polly arrives in San Francisco, she is met by Rica and is unhappy to learn that Nick is resting in her room. Slob and Pete then try to sell their load of apples to Figlia, but Slob angers Pete when he ghoulishly offers to go back to pick up the apples around Ed's crash site. After Rica tells Polly that Nick has been robbed of all his money, Polly walks out on him. Confused by Rica's behavior, Nick accuses her of setting him up. She warns him that Mitch and Frenchy may try to kill him, as she knows they have arranged truck accidents before. Early the next morning, Nick goes to the market and meets Slob, who tells him that Ed is dead and that Figlia and his henchmen are scavenging his cargo. As Nick and Slob head out to the crash scene, Rica phones the police. Figlia and Pete are celebrating in a bar when Nick and Slob show up. After Pete discovers that Figlia has underpaid him, Figlia tries to leave, but Nick grabs him and beats him up, forcing him to say that he has a check for Nick's father and that he will make up all the other losses. The police arrive, take Figlia into custody and warn Nick about taking the law into his own hands. Nick returns to Rica and they plan a life together.