Story: "Ending Battle Part 5. After School Special" (22 Pages)

Credits:

Geoff Johns (plot, script)
Pascual Ferry (pencils)
Mark Farmer (inks)
Tanya and Rich Horie (colors)
Richard Starkings (letters)
Eddie Berganza (edits)

Feature Character:

Superman (last in Action Comics #795; next in Adventures of Superman #609)

Villains:

Master Jailer (next in Adventures of Superman #609)
Prankster (last in ???)
Bizarro #1 (last in ???, next in Adventures of Superman #609)
Neutron (next in Superman: The Man of Steel #131)
Terra-Man (last in Superman: The Man of Steel #130)
Mr Mxyzptlk (last in ???; next in Superman: The Man of Steel #132)
Puzzler (Valerie Van Haaften; first appearance)
Metallo (next in Adventures of Superman #609)

Synopsis:

Superman returns to Metropolis to find the whole place transformed into a giant jail by the Master Jailer. Here he also encounter such threats as Prankster and Bizarro (when Mxyzptlk arrives on the scene, he realises it's a bad time and pops straight back where he came from). When Superman defeats all of these and breaks in to Metropolis, he faces the Master Jailer, who holds him in place for the attentions of Metallo, the man with the Kryptonite heart.