Siblings Wednesday and Pugsley Addams will stop at nothing to get rid of Pubert, the new baby boy adored by parents Gomez and Morticia. Things go from bad to worse when the new "black widow" nanny, Debbie Jellinsky, launches her plan to add Fester to her collection of dead husbands.

Andy heads off to Cowboy Camp, leaving his toys to their own devices. Things shift into high gear when an obsessive toy collector named Al McWhiggen, owner of Al's Toy Barn kidnaps Woody. Andy's toys mount a daring rescue mission, Buzz Lightyear meets his match and Woody has to decide where he and his heart truly belong.