Pretorius creates a mucus monster by using Peggy's cold. The monster has to infect all people in Edge City. Stanley also has a cold and while he is wearing the mask, things are far from different than the usual experience.
Stanley, Milo, Peggy, Charlie Schumaker, Mrs. Peenman, Kellaway and Doyle are tricked by the Mask into taking a cruise. Te occasion is to celebrate The Mask' birthday. Unluckily for them, Pretorius is planing to use the ship to test his latest weapon that will create a tsunami that will destroy Edge City.