Scooby-Doo! Mystery Incorporated: 1x20
The Siren's Song
Feeling left out of the group, Velma goes solo to investigate attacks by amphibious “Fish Freaks” in the area around an abandoned oil rig, only to find a friend of her own… in the form of a mermaid!
1 - 1Beware the Beast from Below Jul. 12, 2010
1 - 2The Creeping Creatures Jul. 19, 2010
1 - 3Secret of the Ghost Rig Jul. 26, 2010
1 - 4Revenge of the Man Crab Aug. 02, 2010
1 - 5The Song of Mystery Aug. 09, 2010
1 - 6The Legend of Alice May Aug. 16, 2010
1 - 7In Fear of the Phantom Aug. 23, 2010
1 - 8The Grasp of the Gnome Aug. 30, 2010
1 - 9Battle of the Humungonauts Sep. 06, 2010
1 - 10Howl of the Fright Hound Oct. 04, 2010
1 - 11The Secret Serum Oct. 11, 2010
1 - 12The Shrieking Madness Oct. 18, 2010
1 - 13When the Cicada Calls Oct. 25, 2010
1 - 14Mystery Solvers Club State Finals May. 03, 2011
1 - 15The Wild Brood May. 10, 2011
1 - 16Where Walks Aphrodite May. 17, 2011
1 - 17Escape From Mystery Manor May. 24, 2011
1 - 18The Dragon's Secret May. 31, 2011
1 - 19Nightfright Jun. 07, 2011
1 - 20The Siren's Song Jun. 14, 2011
1 - 21Menace of the Manticore Jun. 21, 2011
1 - 22Attack of the Headless Horror Jun. 28, 2011
1 - 23A Haunting in Crystal Cove Jul. 05, 2011
1 - 24Dead Justice Jul. 12, 2011
1 - 25Pawn of Shadows Jul. 19, 2011
1 - 26All Fear the Freak Jul. 26, 2011