Someone wants to kill Magpie Harper. Crash and Dusty arrive too late, Magpie Harper is allready dead.

When Moreland's henchman attack Bob Horner the Range Busters break it up. Horner dies but they get the baby Moreland was after. He must have it to...

The Canadians have discovered a valuable substance called Compound X, which can cure infantile paralysis. When a country at war with Canada learns...