I believe I read this around 2015 as a Kindle book (I'm looking through my library now, although it's kind of clogged with titles around that time), I think as a $0 promotional item. The protagonist is a teenage boy who, when hassled by a bully at school, accidentally manifests his powers (I don't remember if it was super-strength or some kind of a blast), and knocks said bully backwards, injuring him (not life-threatening, but I think there were some broken ribs involved). Shortly thereafter, his father reveals himself to be a superhero. I don't think the mother had powers, but the father had the classic "flying brick" powers, I think, and was going to train the boy in the same. Complicating matters, a long-time nemesis of the father had just broken out of where he was imprisoned. After that, my memory gets a bit hazy other than that the father has his son training with a flying drone somewhere high up when they're attacked by another drone created by the villain.
I'm 90% certain that it turns out the villain broke out because he learned that his son (the aforementioned bully) had gotten hurt, and he was seeking revenge, and I think said bully winds up with powers himself, although I don't remember any details, or how the conflict resolved.