The seventh film in the carry on series starring sid james, hattie jacques, charles hawtrey and kenneth connor. Hattie jacques plays peggy, the long suffering wife of the workaholic owner of speedee cabs, charlie sid james. Charlie finds he has some serious competition when rival company glamcabs opens up nearby. With his company facing bankruptcy, charlie suggests a merger only to call it off when he finds out his wife peggy is the new firm's mysterious owner. She started glamcabs as a way to get back at charlie after years of neglect. The secret of her success was simple she only hires gorgeous female taxi drivers!   when peggy is kidnapped by bank robbers, charlie is forced to put his issues to one side and rally the drivers at speedee taxis in a bid to rescue her.