ThunderCats — Season 2, episode 13 watch online
ThunderCats, season 2 episode 13 «The Sound Stones»: air date September 23, 1987. Episode overview, season trailer and the cast of ThunderCats.
Vultureman develops a sonic gun to destroy the Thundercats. Since the other Mutants refuse to help, Vultureman decides to go on his own until the Lunataks ""kidnap"" him and force him to help them. Vultureman uses a legendary sound stone to power the device and he and the Lunataks use it against the Thundercats at the Tower of Omens. The Thundercats barely escape and are saved by Lion-O, but they lose the tower to the Lunataks. The Thundercats must design a sound weapon of their own with a sound stone to counter Vultureman's weapon and retake the Tower of Omens.
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Episodes — Season 2
- 1 Episode 1 «Mumm-Ra Lives (1)» September 7, 1987
- 2 Episode 2 «Mumm-Ra Lives (2)» September 8, 1987
- 3 Episode 3 «Mumm-Ra Lives (3)» September 9, 1987
- 4 Episode 4 «Mumm-Ra Lives (4)» September 10, 1987
- 5 Episode 5 «Mumm-Ra Lives (5)» September 11, 1987
- 6 Episode 6 «Catfight» September 14, 1987
- 7 Episode 7 «Psych Out» September 15, 1987
- 8 Episode 8 «The Mask of Gorgon» September 16, 1987
- 9 Episode 9 «The Mad Bubbler» September 17, 1987
- 10 Episode 10 «Together We Stand» September 18, 1987
- 11 Episode 11 «Ravage Island» September 21, 1987
- 12 Episode 12 «Time Switch» September 22, 1987
- 13 Episode 13 «The Sound Stones» September 23, 1987
- 14 Episode 14 «Day of the Eclipse» September 24, 1987
- 15 Episode 15 «Sideswipe» September 25, 1987
- 16 Episode 16 «Mumm-Rana's Belt» September 28, 1987
- 17 Episode 17 «Hachiman's Honor» September 29, 1987
- 18 Episode 18 «Runaways» September 30, 1987
- 19 Episode 19 «Hair of the Dog» October 1, 1987
- 20 Episode 20 «Vultureman's Revenge» October 2, 1987