Apocalypse on DC Earth
Due to a malfunction of Celestial Tech that Apocalypse was analyzing and exploiting for his own good, a wormhole opens in Apocalypse's labratory...and takes him to DC Earth. While he is there...he analyzes the planet...and its primary protectors....the Justice League. Apocalypse proceeds to make plans for the takeover of the planet. In order to achieve his goal....he needs to round up four beings that will become his Horsemen on DC Earth....who in turn...will go out and attempt to create an Army to subdue DC Earth and the Justice League.
The Justice League members being targeted for this specific battle are:
1.Superman
2.Wonder Woman
3.Martian Manhunter
4.John Stewart
5.Wally West
6.Batman
7.Aquaman
8.Hawkman
9.Captain Atom
10.Red Tornado
Apocalypse must hire four beings from the DC universe to become his Horsemen that could take out this lineup. Who would Apocalypse target to become his Horsemen? As a prerequisite, whomever Apocalypse chooses must be willing to be subserviant to him....so, no Darkseid, Despero, Doomsday, etc.. An example could be Lobo....Apocalypse could easily pay him off to be a Horseman.