S1, E6: On Felicia Devort's orders, Stroy and Blueprint bury toxic waste in the jungle. Marsu eats a contaminated piranha and rapidly gets sick. Weak and incapable of defending himself, Marsu becomes an easy target for Stroy et Blueprint, when they return to the scene of their crime to cover up the evidence of their wrongdoing. Yes, the two numskulls have struck again: when they buried the barrels of toxic waste in the jungle, they forgot to remove the Devort logo! When they see Marsu's weakened state, Felicia's two henchman think they've found the key to their victory... But they don't count on Hector's ingenuity, Aunt Diane's genius at devising antidotes, and Mrs. Marsu, always ready to come to her husband's rescue.