1. Cover by Ross Andru and Dick Giordano.
2. "The Super-Switch to New York" (Supergirl) written by Jack C. Harris, penciled by Win Mortimer, inked by Vince Colletta, colored by Gene D'Angelo and lettered by John Costanza.
3. "The 5th-Dimensional Hijack!" A "Mr. & Mrs. Superman" story written by E. Nelson Bridwell, penciled by Kurt Schaffenberger, inked by Brett Breeding, colored by Gene D'Angelo and lettered by Milt Snapinn.
4. "The Case of the Stolen Clock" A "Private Life of Clark Kent" story written by Bob Rozakis, penciled by John Calnan, inked by Joe Giella, colored by Carl Gafford and lettered by John Costanza.
5. "Lois' Dream Scoop!" (Lois Lane) written by Gerry Conway, penciled by Bob Oksner, inked by Vince Colletta, colored by Carl Gafford and lettered by Shelly Leferman.
6. "Mystery of the Missing Mail!" (Jimmy Olsen) written by Gerry Conway, penciled by George Tuska, inked by Joe Giella, colored by Carl Gafford and lettered by Milt Snapinn.
7. "Hembeck" written, penciled and inked by Fred Hembeck.
8. "DC Profile #73 Don Heck" text piece by Michael C. Carmichael.
9. "Daily Planet" Volume 81 Issue 4 for the month of April 1981 edited by Bob Rozakis, production by Jodi Saviuk and lettered by Typeset. Featuring Vixen making her debut in Action Comics #521. Plus, "Ask the Answer Man".

Notes:

• First monthly issue.
• Linda Lee Danvers (Supergirl) leaves the New Athens Experimental School in Santa Augusta, Florida for a new career in acting in New York City.
• Lois Lane, King Brpxz and Mr. Mxyztplk are from Earth-2.

A bomb threat in New York, an armed robbery in a pawn shop, a field trip to Zrfff... just another busy schedule for The Superman Family!