Calling All Legionnaires! Assignment Danger!

  London is in flames. The sky is raining fish in New York City. Paris, Brussels, Antwerp and Rotterdam are encased in a foot-thick layer of ice.

Calling All Legionnaires! Assignment Danger!

  Disc Men from Mars have taken over the stratosphere. Strange, crackling ultra-rays beam down randomly from the clouds. An armada of Zombies has landed in the Florida Keys and they are marching north up US-1, fanning out across the countryside.

Calling All Legionnaires! Assignment Danger!

  Congress is being held hostage by a platoon of insane werewolves with machine guns. Nobody in the state of New Jersey answers their phone... and in the west, a tumbleweed the size of Kansas blows unchecked across the plains.

Calling All Legionnaires! Assignment Danger!

  On the run and disguised as a shortstop for the Cleveland Indians, the President of the United States slips into a phone booth and frantically dials a top-secret number. "Come quick! I need you!" he screams, before a blinding ray spirits him off into the sky.

  The call goes out to the four corners of the world: ASSIGNMENT DANGER! In 183 languages, Morse Code, AM, FM, shortwave and broadband, all TV stations, and sky-written over Miami Beach: Assignment Danger!

  The mysterious masked adventurers arrive from all points of the compass! By racecar, speedboat, jet plane, mini-sub, riding a freight car with hoboes, parachute, jet pack, and canoe, all converging on Skeleton Island.

  The year is 1966.

Who are these mysterious masked men?