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Episode 2.13 “Wormquake” Facing Shredder’s deadly new assassin, Leo must decide whether to risk his brother’s lives or ask for Splinter’s help.

Episode 2.12 “Of Rats and Men” The Rat King returns, forcing Splinter to face his fears and battle his rival. This episode features Kevin Eastman voicing Ice Cream Kitty.

Episode 2.11 “Metalhead Rewired” Metalhead gets upgrades from Donnie, who wonders if Metalhead should be viewed as a loyal friend or an enemy.

Episode 2.10 “Fungus Humungous” The gangs’ worst fears surface because of a fungus mutant, and Leonardo worries he’ll lose his team.

Episode 2.9 “The Kraang Conspiracy” April feels ignored, so she joins the turtles on a mission, and a secret from her past is revealed.