Frustrated by their obnoxious lemur neighbors, the penguins decide to take a vacation... to the moon.

A giant balloon float of a killer whale haunts Private.

Private is upset when Mort is chosen to be the cover animal for the zoo's brochure.

The penguins are recruited by Buck Rockgut to help him capture the Red Squirrel.

Kowalski travels back in time to prevent himself from building a time machine.

Marlene discovers a lost egg and thinks the Penguins would be perfect egg watchers.

The penguins leap into action when a spooky noise frightens Marlene.

The popularity of stuffed Mort dolls causes Julien to sabotage the toys, prompting a recall.

Maurice bribes the animals with candy so they'll celebrate "King Julien Day."

When Skipper steals Julien's radio batteries, a wild chase gets them stuck in a kangaroo pen.

After Rico ingests a strange liquid, he discovers he can no longer regurgitate items from his belly.

The penguins and lemurs face off in a winner-take-all race around the zoo.

The penguins aren't happy when their fish supplies are replaced by imitation fish cakes.

Julien challenges the penguins to play Capture the Flag, but the lemurs win every time.

Julien can't take Mort's obsessive feet touching, so he exiles Mort from the lemur habitat.

Marlene goes to greet the mysterious new animals... then promptly disappears.

When a solar eclipse occurs, Julien is tricked into thinking it's his fault.

Mort quadruples in size after being exposed to Kowalski's super-ray.

When the penguins lose access to their favorite snack, Skipper and crew leap into action to find a new supply.

When the zoo installs web cams to bring in new visitors, Private accidentally becomes an Internet star.

Skipper accidentally causes King Julien to lose his beloved crown. Now the penguins go on a dangerous mission to retrieve the crown from the sewer.

Rico ignores a freaky fortune from his cookie, but Julien thinks Rico needs to believe in the superstition.

When Marlene sets foot outside of captivity, she snaps and becomes a feral beast.

Julien and Maurice fight over a camera that fell from the sky.

Maurice is left in charge when Julien is carted off to the zoo infirmary.