World of Krypton comes to an end with issue 3 (Sept 79). While Andru and Giordano stay on the cover, Frank Chiaramonte joins Kupperberg and Chaykin on the story itself.
That makes the art a bit weaker for the final chapter, which is a shame, as this is also the weakest of the three issues in terms of story. We are now treading very familiar ground, which is the problem. At the start, Jor-El's pronouncements about the forthcoming destruction of Krypton are dismissed by the Science Council, who forbid his space fight experiments.
Jor-El struggles to secretly build a rocket. Some drama is added to this by Phantom Zone villains General Zod, Jax-Ur, Faora and Kru-El taking control of Jor-El's exhausted mind, trying to get him to free them. Lara saves the day on that one.
As the explosion of Krypton grows closer, the story goes faster. We get a brief scene of Jor-El sending Beppo into space, although we don't see Krypto getting shot into space as well.
Lar Gand, better known as Mon-El, appears for a couple of panels, showing his brief time on Krypton before heading to Earth.
Then it's time for the big finale, the explosion of Krypton, as Jor-El and Lara perish along with the planet.
The miniseries closes with baby Kal-El found by Ma and Pa Kent, who name him Clark and take him in.
Not the greatest miniseries, and certainly not the most daring. But probably a wise idea to have tread familiar ground when testing out the idea of a miniseries. World of Krypton also set the format for DC's other early miniseries, which would explore, often largely with recaps, the biggest characters and teams in the line-up.