Undersea Adventure is another film of Thomas, Twilight, Brian Griffin, and friends' Amazing Escapades.




  • Blackie the lamb, Gail Trent, Mitzi, The Backyardigans,  Barney the dinosaur, Cody, Amy, Marcela, Duck, Oliver, Toad, The Scottish Twins, Spencer, Stepney, Gator, Skiff, Ryan, the Small Railway Engines, Captain Hook, Sailor John, Blackbeard, Davy Jones, and Captain Gold Teeth guest star in this film.
  • This marks the first appearance of Seyria, The Great Seadragon,
  • This movie is based off of "Pokemon Ranger and the Temple of the Sea"



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