Documentary. The development of the concept of the theme park, from the opening of Disneyland in 1955 to the future possibilities of virtual reality. Includes film of roller coaster rides in America and at EuroDisney, the `Earthquake' simulator and other attractions at Universal Studios, and the creation of a `ride' by special effects expert Douglas Trumbull, based on the feature film `Back to the Future'. Interviews with Disney `imagineer' Eric Westin, former Disney animator Marc Davis and Trumbull. Includes archive film of Walt Disney. Ends with speculation over what virtual reality will mean to family entertainment once it meets expectations.