Out of the Groove.Julien comes to the penguins and announces that his ability to dance has disappeared. In a flashback, Julien recalls how it happened: Jealous that the baboons' dance routine was attracting more attention than his own, Julien dropped a crate of skunks into their habitat, and was cursed in retaliation by lead baboon Darla, trapping his "groove" in a jar. Darla states that she will return the groove if Julien apologizes, but Julien refuses. Later, during a chase, the groove-containing jar is shattered and its magic transferred into Skipper, who uses his newly acquired and undesired dance skills against Julien physically to force him into apologizing to Darla.