Atlantis Attacks Fantastic Four: World's Greatest Heroes : Season 1 Episode 21
TV-Y7 Cartoon Network 30m
Aired: September 1st, 2007 @ 8:00 PM EST on Cartoon Network
The Sub-Mariner returns, but this time he needs help to defeat Attuma, who has taken over Atlantis. While Reed, Susan, and Ben head off to help free Atlantis, Johnny stays behind and faces an attack on the city from a giant mutant whale.
