The strange rocks that cover a Lake Michigan island turn out to be fragments of an asteroid that has the power to coalesce in to a motile fiery mass that legend knows as the 'Dune Roller'. The teleplay, based on the eponymous short story by Julian May, is an efficient little sci-fi-spooker that follows a (now) predictable trajectory. Deadly rocks from space were revisited in the excellent B-movie 'The Monolith Monsters' (1957) and the Dune Roller plot was recycled in 1972 in the apparently abysmal 'The Cremators'. Far from brilliant, but definitely watchable (as long as the limitations in early TV productions are accepted). Stars Bruce Cabot of 'King Kong (1933) fame.
Review of The Dune Roller
