AIM/HYDRA has JARVIS
Guys this fic has been driving me batty. I know it's on AO3. What I can remember is that it takes place after Ultron (and I'm pretty sure after Civil War?). Tony was captured by a cell of Hydra agents that had created an alliance with AIM scientists. They wanted Tony to look at this program that they had.
Turns out it was Jarvis, and they were pretty much torturing him. I remember that everything he was connected to would short out every time they did something to his coding. Long story short, Tony destroys them and rescues his son. Oh and the other Avengers showed up for a 'rescue mission' at the end, y'know, after Tony had taken the base out.
Please Help. Google has been no use.