Private is smitten with the zoo nurse, but the only way he can see her is to get injured.

Julien goes on a pranking spree when he learns about April Fool's Day.

Kowalski steals the computer chip from Mort's new video game to finish an invention.

The penguins try to help Randy overcomes the problems he's having at the petting zoo.

The penguins and Julien believe Marlene has cooties after overhearing a group of schoolchildren.

When a baby stroller rolls outside the zoo, the penguins redefine the term "daycare."

The penguins accidentally blow up the koala habitat wall, so Leonard has to bunk up with Joey.

The penguins must protect the zoo commissioner from Frankie the pigeon's wrath.

The Amarillo Kid arrives and declares that he has a score to settle with "Mr. Tux."

The penguins become convinced that a kid on a field trip to the zoo is spying on them.

The penguins must stop a contractor from completing repairs on their habitat before he destroys the world!

When Skipper is knocked on the head, he's unable to lead the penguins on an important mission.

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

Eggy the duckling is convinced that he can handle dangerous missions like the penguins.

Private is ready to move up in rank within the penguin commando unit... or is he?

Rico desperately wants to a voice chip upgrade for his doll-girlfriend.

A puffin from Skipper's past returns and tries to take over the penguins' habitat.

Private accidentally drinks Kowalski's truth serum and starts spilling the penguin's secrets to the rest of the zoo.

The penguins have a plan to beat the heat, but they'll need Alice out of the way.

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

Private tells Mort that if he throws a penny in the fountain, his wish will come true... and it works!

Kowalski's attempt to super-charge his brain backfires and now he's dumber than mud.

Private finds a stack of comic books and ignores Skipper's request to destroy them.

A simple plan to have Mort spy on the rats ends up with Julien and Skipper captured.

A group of cockroaches ask the penguins for help with their exterminator problem.