AllMovie

Passing through a time warp, the Jupiter 2 crash-lands on Earth in the year 1947, exactly fifty years before the vessel was launched. The locals of Hatfield Corners--who seem to have the collective IQ of a junebug-- assume that the Robinsons are Martians, and as a result Will (Billy Mumy) is captured and the rest of his family must avoid a band of vigilantes. Meanwhile,the opportunistic Dr. Smith (Jonathan Harris), who wants to remain on earth, does his best (or worst) to blend in with the mob. In one remarkable scene, the Robinsons are confused by the presence of an old-fashioned rotary telephone (well, wouldn't YOU be?)