Jimmy's ancestor Joachim, who had a legitimate claim to the land that would eventually become the city of Metropolis, is murdered by an ancestor of Lex Luthor.
Jimmy volunteers for a medical experiment that turns him into a giant turtle boy who destroys a Metropolis landmark.
Perry fires Jimmy (again) but is forced to rehire him when analysis reveals that it's Jimmy's constant stunts and mishaps that drive readers to the Daily Planet.
Jimmy has been sent away from Metropolis to mitigate the damage he causes, so he moves into a rundown tenement in Gotham City.
Jimmy Olsen logo on cover and interior stories is based on the original Olsen logo by Ira Schnapp.
- The Pal Who Fell to Earth - Jimmy's transformation recalls the Silver Age story "The Giant Turtle Man!" from Superman's Pal, Jimmy Olsen (DC, 1954 series) #53.
