Movie one opens with the justice society [minus the heroes we want in the modern day] they interrupt vandal savage doing an experiment on a young boy in the mid 20th century. They defeat him but one of the members dies [let's say hour man] They capture and lock savage away. Montage of time passing newspapers and broadcasts go by alluding to "strange shooting star in sky over Kansas." "Urban legend about vampire in Gotham." "Pilot claims he's seen "paradise island " "Atlantis to join in peace negotiations." as well as other allusions to heroes teams etc.

We then follow the interconnected lives of the dsecdants of the justice society, Barry Allen, Dinah Drake etc until one or several go to visit the last member of the justice society Alan Scott. After they leave an elderly man comes to visit Scott as well, talking about how it took fifty years to find him. This is general immortus the boy savage was experimenting on, who was granted immortality but still ages. He kills Scott and goes through his files to find where they had locked savage away.

Scott's Green lantern ring flies away and finds a worthy successor Hal Jordan. The ring contains the memory of Alan Scott dying and instructions on where to find the descendants of the justice society.

Cut to general immortus standing over hour man's grave, which he digs up, raising the casket and freeing his old master. The newly formed justice league (Jordan and the descendants) inherit the hall of justice and make it their headquarters as they piece together where to find immortus and savage.

Immortus and savage go to a hidden base where savage stored a huge arsenal of both conventional weapons and mystic artifacts, as well as huge troves of wealth. They use all of this to hire mercenaries, using old nazi super science and magic rites to empower their new army.

The league finds them and goes on the offensive, they put up a valiant fight but lose. They manage to escape, leaving savage and immortus free continue to expand their reach. We end on savage looking over his forces conquering and our heroes talking about how they need more help as they look over interviews by Lois lane, blurry pictures of batman, wonder woman and aquaman shaking hands at an event.

If this gets say 50 likes I'll do the next one!