THE UNITED FRONT
The JSA(Alan Scott, Wildcat & Jay Garrick) who mostly fought on the home front, come upon a spy ring, and a plot that will put Soldiers in the european theater in peril.
Meanwhile on the front lines, The Invaders (Cap, HT & Namor) stumble onto the same plot.
GL travels to the front even as HT heads back to the States, setting up two partial crossovers as the travelling heroes run into the resident team members.
In the end, all six will 'meet in the middle' so to speak, at some super secret lair, as HT, Jay & WC join Alan, Cap & Namor, to stop a Nazi super weapon capable of taking out the Allies.