A romantic night means a flight to the moon. For Fujiko, who tells him she wants to take a flight to the moon, Lupin decides to borrow the mass-popcorn-producing machine developed by Professor Pancho. NASA, however, doesn't buy it, because their prestige will be ruined if it is shown that the moon can be reached that easily, and take the Professor and his wife into custody, in an attempt to stop the launch. After various events, the countdown begins at last.