Season 4, Episode 3: Sons of the Silent Age (EP81)
Résumé de l'épisode 81
Taking a Huck Finn styled trip down a local river, the turtles, Casey and April discover a nuclear power plant … as well as mermen of Y'Lantias … the last of their kind.
Voir Teenage Mutant Ninja Turtles (2003), The Complete Series - Episode 81