Underground Lepka is planning on flying Giganto, a huge war plane. Lepka's forces take over the control room and secretly redirect the solar energies to power the ship. Lana and Monsley escape and inform the others. Conan and friends have salvaged the passenger ship when they find out about Lepka and fly back. The giganto launches and fires at the Triangle Tower. Monsley crash lands on the Giganto. Monsley and Lana go back to Industria on the Falco while Conan, Jimsy, and Dyce stay in the Giganto.