G.I. Joe: A Real American Hero

My Favorite Things (2x19)

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Wet-Suit and Leatherneck have never, ever got along but their heated rivalry must take a backseat when Serpentor begins collecting artifacts from his former lives to gain power, and Leatherneck is poisoned trying to stop him. Wet-Suit has to prove he doesn't have any hard feelings for Leatherneck, as he and Lifeline risk their lives trying to recover an antidote from Serpentor's blood.