Captain Carrot; Pig-Iron [Peter Porkchops]; Alley-Kat-Abra [Felina Furr]; Fastback; Rubberduck [Byrd Rentals]; Yankee Poodle [Rova Barkitt]; Superman; Starro the Conqueror; Batmouse; Wonder Wabbit; Super-Squirrel; Crash; Green Lambkin; Aquaduck; Justice League of America [Green Lantern [Hal Jordan]; Aquaman; Martian Manhunter; The Flash [Barry Allen]; Wonder Woman] (flashback)
When Superman and Captain Carrot fail to break through the space barrier keeping them from Pluto, Superman disappears and Captain Carrot falls back to Earth and into the arms of Pig-Iron. Together, Captain Carrot and Pig-Iron recruit other new super-heroes and head again for the barrier. They find themselves zapped to Pluto where they discover Superman being held by Starro the Conqueror. Working together, they defeat Starro and declare themselves a new team, The Zoo Crew.