"The Parasite's Power-Play"
Appearances may be deceiving, but it looks like Lex is in charge of an alien invasion of Metropolis. The worst part is Superman seems powerless to stop it.
"The Fabulous World of Krypton: The Demon in Superboy's Body"
After Jor-El convinces the Science Council to keep an inmate in space for an additional four years, strange things start happening to his family.