Marvel's Ultimate Spider-Man Season 4: vs the Sinister 6 Episode 21 The Spider Slayers (1) ( Air Date 2016-10-08 ) Genre Kids, Action & Adventure, Animation, Comedy, Family category. Overview "Spider-Man must team with the former traitor, Scarlet Spider, to stop Doc Ock from reawakening a secret program designed to create evil duplicates of Spider-Man.".
Marvel's Ultimate Spider-Man Season 4: vs the Sinister 6 Episode 21 The Spider Slayers (1)
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- Watch: Marvel's Ultimate Spider-Man Season 4: vs the Sinister 6 Episode 21 The Spider Slayers (1) on CWR-CRB
- Stars: Drake Bell, Misty Lee, J.K. Simmons, Chi McBride, Ogie Banks
- Director: Leanne Moreau, Kevin Manthei, Dan Buckley, Jeph Loeb, Alan Fine, Stan Lee, Joe Quesada
