This was another great issue from Tom Taylor and the the new artist on the book Laura Braga
spoilers:end of spoilers
Teen Abomination's mom worked for Tony, she brought Jamie with her to work the day she was experimenting with Gamma rays and you can tell where things go from there. She was fired and blamed the accident on Tony neglecting the company.
The accident happened on the same day Black Lama reappeared. Tony fought Black Lama and Whiplash, Black Lama projected his insanity onto Tony but Tony managed to send him back to his dimension. He was flying back to stark industries when he crashed and blacked out .
Jamie's first transformation into Teen Abomination happened when he got home after getting beaten up by a few kids. His mom offered to help with the bullying by talking to his teachers but this lead to him getting angry and transforming for the first time, his house blew up which caused the death of his mother.
At the beginning of this issue tony injected some fluid into Jamie that finds everything in his DNA. He found out that Happy Hogan was Jamie's father which made Tony want to help him.
The issue ends with Tony trying to find out who made him blackout the day of the accident.
I was confused about the last page I thought Black Lama caused that to happen to him