This is the second of three wartime feature films starring the beloved radio characters Gert & Daisy, who at a particularly bleak stage of the war roll up their sleeves and set about denuding the street on which they live of most of its metal fittings and other material suitable for salvage ("Straight from boozer to cruiser!"), about which they sing a song. The girls also public spiritedly provide accommodation to merchant seaman Ralph Michael and foil a dastardly plot by black marketer Joss Ambler involving a consignment of tins of pineapple chunks (which he is daft enough to outline in the local pub in a loud voice within earshot of Michael). The film ends with a song extolling the merchant navy. One of the other crew members is played by the Jamaican gospel singer Uriel Porter, who also gets to sing.