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 6 · Episode 39 ·
Crash Test Johnny
Johnny quits as the girls' test subject and quickly regrets his decision.
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Episode 39 of season 6 of Johnny Test: “Crash Test Johnny”. Aired 2014-02-25. Watch it online free on ZapFlix.