Invincible swooped in like a revelation. In its blistering and blood-soaked first season, the Amazon series (an adaptation of comics by The Walking Dead creator Robert Kirkman) turned superhero conventions upside down with its harrowing tale of fathers, sons, and the secrets that tear them apart. While, on the surface, Invincible presented itself as a colorful, grown-up homage to Saturday morning cartoons, in its heart, it was an Aeschylus tragedy dressed in spandex.
