The previous episode was a completely silly, hilarious comedy, this one is the exact opposite, it's a sad, emotional episode. The opening is throwaway, Joker causes mayhem and Catwoman appears at the very end of it. Pretty weak opening actually. But the main episode is gold and very different from what we usually see from this show.
Red Tornado creates a son, but he soon develops some dark troubling views on humanity, calling them evil and a disease. Tornado shuts him down, but his son is not done yet and upgrades himself and becomes the Tornado Tyrant. The final confronation between the two is very emotional, and the ending is surprisingly sad, I'll admit it, I almost cried a little, something I never do, only Pixar can make me cry apparently. This episode came close however.
There are zero jokes in this episode, besides the opening, but that's the great thing about this show, how it can go from light adventure and comedy to heavy, dark episodes like this, where Red Tornado has to kill his own son. I really liked this one.