Advertisements NOTE: spoilers permitted in this thread and may appear after the initial post here. (For entire season one of the series) For like-minded nerds among us ... Amazon Prime is now streaming Invincible. Streams weekly (one episode per week) on Fridays. Invincible: Amazon Prime New Episodes Fridays | INVINCIBLE is an adult animated superhero series that revolves around 17-year-old Mark Grayson, who’s just like every other guy his age — except his father is the most powerful superhero on the planet, Omni-Man. But as Mark develops powers of his own, he discovers his father’s legacy may not be as heroic as it seems. I was lucky enough to preview it, found it to be quite good and am looking forward to watching the series. Sweet, just confirmed, first three episodes up, so you can enjoy 3 episodes thus far.