Harry Hart

After an unsuccessful training mission that resulted in the death of his protege, Harry Hart honored his memory by oresenting the Medal of Honor to his son, leaving a way to contact him on the medal. Seventeen years later, Eggsy was thrown in prison and contacted Hart. As agent Galahad, Hart submitted Eggsy as his candidate for the recently emptied position of Lancelot in the Kingsmen.

While Eggsy continued his training, Galahad began investigating the businessman Richmond Valentine. Galahad soon revealed Valetine's plan to commit genocide via SIM cards that activate the owner's aggressiveness. Hunting down Valentine to Kentucky, Galahad is brought into a church where Valentine tests the SIM card. Affected by the cards as well, Galahad becomes the participant in a gigantic bloodbath that results in the death of the entire congregation except himself. Remorseful, he leaves the church only to be executed by Valentine.

Battle vs. Batman (Nolanverse) (by Cfp3157)
TBW.

Expert's Opinion
TBD.