power as it moves from one power source to the next. Four Mexican Air Force fighter planes attack, but the ever-growing alien machine easily destroys them and continues on its rampage. Meanwhile, when Kronos is absorbing energy, Eliot is momentarily freed from the influence of the energy force controlling him. Eliot tells his returned colleagues that Kronos is an energy accumulator, sent by an alien race that has exhausted its own natural resources; they have sent their giant machine to drain all the Earth's available power and then return it to their dying world. On Eliot's recommendation, the United States Air Force sends a B-47 bomber to drop an atomic bomb on Kronos. Gaskell warns the Air Force general in charge that an atomic explosion will simply supply the alien machine with more massive amounts of energy. The general attempts to abort the mission, but Kronos, aware of the plan by way of Dr. Eliot's mind, magnetically draws the jet to crash into it, absorbing the bomb's nuclear blast. The alien machine, now grown to an immense size, appears unstoppable, harvesting all forms of energy at will. In another uncontrolled moment, Dr. Eliot locks himself in an hermetically sealed room and smashes the only electronic keypad for the door; he and the energy force which has possessed him expire. As Kronos draws near Los Angeles, Gaskell realizes that reversing the machine's polarity will force it to feed upon itself, until it is destroyed in a gigantic implosion. Gaskell, Culver, and Vera convince the Air Force to bombard Kronos with nuclear ions, which will cause the polarity to reverse; the experiment works, and Kronos is completely obliterated in the resulting implosion. Cast Jeff Morrow as Dr. Leslie Gaskell Barbara Lawrence as Vera Hunter George O'Hanlon as Dr. Arnold Culver John Emery as Dr. Hubbell Eliot Morris Ankrum as Dr. Albert Stern Kenneth Alton as The Pickup Driver (Script name: McCrary) Jose Gonzales-Gonzales as Manuel Ramirez John Halloran as Lab Central Security Guard John Parrish as Gen. Perry Marjorie Stapp as The Nurse Robert Shayne as Air Force General Rosa Turich as Senora Ramirez Don Eitner as USAF Meteorology Sergeant Ron Kennedy as USAF Control Tower Sergeant Gordon Mills as A Sergeant Richard Harrison as A Pilot Production Kronos was filmed in a little more than two weeks (mid-January to late January 1957) in California; special effects were created by Jack Rabin,