A widow and a widower have to contend with hostile children when they fall in love.

Widower Jake Iverson is invited to a dinner party given by widow Abby McClure. Tiring of the matchmaking of Maxine and Harry Scott, Abby's in-laws, Iverson leaves the party, but later encounters his hostess in an all-night store. Embarrassed by the widow's apology for her relatives' behavior, Iverson arranges to see Abby again. Although the widow and widower fall in love and marry, Abby's sons, Flip, Mitch, and Jason, fight continuously with Iverson's possessive daughter Stacey. Even the family dogs are incompatible. For privacy the newlyweds borrow a camper, which they use as a bedroom. During a bedtime argument Abby drives off in the vehicle. Her husband falls from the camper, clad only in briefs and clutching a teddy bear. Abby, discovering her loss, speeds toward the site of Iverson's disappearance, escorted by a band of hippies. When the camper collides with a chicken truck, Abby and entourage are arrested. Hearing of the accident, Iverson and the children rush to her rescue, en route colliding with the same chicken truck. The irate driver menaces Iverson, and the children and pets unite in his defense. At the station house parents and children are joyfully reconciled.