Nelvana of the Northern Lights #1

Nelvana and John Keene, R.C.M.P. officer, head to Etheria to convince the people there not to attack Earth due to it's use of radio waves. Once there, they find it is under the power of Vultor who plans on taking over Glacia. A war ensues and Glacia is destroyed, but so are the Etherians. Vultor escapes.