AU where Eggsy never went to talk to Arthur after Harry died and Valentine’s plan went off without a hitch. Harry wakes up to find he’s a member of an endangered species. Arthur made a deal with Valentine to tranq Harry, and now his only options are to continue on protecting humanity when 50% of those left were complicit in the murder of billions, or be finished off.
Helpless and blinded by grief, Harry sets about saving what he can.
On a mission to London (isn’t Valentine so merciful, on top of keeping nuclear reactors from melting down post-apocalypse, he’s sending his Kingsman out to help the survivors) he finds his house is mostly intact.
Harry sits in his untouched office and stares at the success-plastered walls while outside the proof of his final failure spans the globe. He runs his fingers over the dusty keyboard of his long-dead laptop. Digs his thumb into the unmarked skin above his left eye, wishing.
He goes to investigate. Survivors are usually ruined people, he’s learned to be cautious. But caution flees his mind the moment he finds himself staring into familiar eyes past the barrel of a gun.
“Harry?” Eggsy asks, disbelieving, from where he’s crouched by his sister in the corner of Harry’s bedroom. Harry’s on his knees with Eggsy in his arms before Eggsy can move beyond shock, trembling hands fisting in Eggsy’s clothes. He holds on for dear life because even in all the death and all the loss, the best thing in his life has managed to survive.
And woe betide anyone who tries to take Eggsy from him again.