Johnny Test
Young Johnny is gung-ho and full of courage. Johnny's brainiac twin sisters, Susan and Mary, use Johnny as their guinea pig for their outrageous scientific experiments. If they can dream it up, Johnny will do it; as long as his genetically engineered super dog, Dukey, can come along.

Season 5 · Episode 8 ·
Johnny of the Deep
Mary turns Johnny and Dukey into sharks when Bling Bling Boy hypnotizes Susan into falling in love with him.
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Episode 8 of season 5 of Johnny Test: “Johnny of the Deep”. Aired 2011-07-11. Watch it online free on ZapFlix.