On Junior Marshals’ Day at the fire station, Melman gets stuck in a firetruck on its way to a real emergency. With Alex’s help, Melman must overcome his fear of heights to help save a stuck cat, and learn that even heroes get scared sometimes.

When Marty accidentally “steals” a pair of slippers from a department store, he plans an elaborate “heist” to return them and learns in the end that it’s easier to own up to your mistakes than to cover them up.

When a litter of hedgehogs are temporarily relocated to the habitat, Alex, Marty, Melman, and Gloria become their “babysitters.”

It‘s Kate‘s birthday and everyone in the habitat has something amazing planned, but Melman is worried that his homemade/hoof-made gift won’t measure up.

Gloria becomes determined to earn her Queen of Kindness Kidizen badge and welcomes some free-spirited rats who need a place to stay into the habitat.

When Ranger Hoof invites Marty on a Junior Ranger night trot in Central Park, Marty is determined to prove he's got what it takes to do the job - but when Alex tags along for the ride, Marty learns that "what it takes' is a whole lot of teamwork.

During the Lunar New Year festival, Alex is disappointed to learn that there's no Year of the Lion. Determined to be somebody important, he sets out to become the star of the festival by taking on the role of the Dragon - but he eventually learns that every role has importance and realises the costume that fits him best is his own fur.

Lala, who's grown into a froglet, is ready to finally join the gang on a big adventure in the city! But she relies on her water bowl to get around, and Gloria goes overboard in trying to protect her tiny friend in the big world… Only to realise that she underestimated all Lala is capable of doing.

When a snowstorm blocks Kate from accessing the zoo, Melman decides to become "substitute Kate" and make sure the animals are cared for. But when the animals go wild in the snow, Melman's future-paramedic skills are put to the test during an outbreak of stubbed toes and boo-boos. A series of stumbles makes Melman question whether he's cut out to be a paramedic - until he learns that mastering a goal takes grit!

When Gloria meets a shy hermit crab, named Starlene, with a secret talent of tap dancing, Gloria plans a flashy production for Starlene’s debut so she can share her talent with the world!

When Lala announces she's moving out of the habitat, Gloria feels sad. But instead of admitting it, she puts all her energy into throwing the "happiest" goodbye party for her tank mate's last day in the habitat.

When the gang goes camping in vacant part of the zoo, Melman is nervous for his first ever sleepover away from the habitat and relies on his friends to scare-proof the experience for him.

When the gang gets bored of their old toys, a mysterious treasure map appears to be the answer to their problems. But when the treasure isn't what they expected, the gang learns that you can make your own fun.

When the gang plans a habitat-wide, friendly basketball tournament, Gloria becomes overly competitive in her quest to win. After she resorts to cheating, Gloria realises that real winners are good sports, and everyone has more fun when they play fair and square.

Alex prepares an acrobatic performance which he wants to perform on Mary Sue and Todd's new live talk show! But when Ant'ney unexpectedly goes viral and is invited on the show instead, Alex is determined to outshine his friend and learns that a friend's success doesn't diminish his own.

When the gang asks him to read aloud their new favourite mystery book, Marty is too embarrassed to admit that he hasn't yet mastered reading. Marty obsesses so hard on his reading practice that he gets locked inside the library overnight with one of the library's therapy dogs, leaving the pair to team up and bust out before sunrise.

Marty finds a puppy and, deeming it a Lost and Found item, resolves to locate its owner- until the pup turns out to be a wild Arctic Wolf Pup, and much more of a handful than Marty anticipated.

When a famous salsa-dancing parrot from Cuba comes to the guest habitat, Gloria’s determined to reunite the icon with her estranged dance partner, ultimately learning to mind her own business in matters of the heart!

When Bartholomew the Bat’s wing is healed, and he’s returned to the wilds of New Jersey, the gang decides to pay him a visit.

On the night of a much-anticipated toy-car race, Melman discovers a popped tired on his toy ambulance. Assuming that someone did it on purpose, Melman enlists Marty and the gang in a noir-like search to find the misbehaving tirepopper.

The gang gets their paws on some CRITTER CARDS, NYC’s latest toy craze, and Gloria is determined to collect them all! But when Gloria loses Melman’s rare and special card, the gang goes on an adventure in the city to get it back.

When Bill the Flamingo moves into the guest habitat, the nosy new neighbor discovers our gang sneaking out for Alex’s big cat food audition- and insists on joining their adventure.

Alex is mistaken for a Maine Coon and takes over that cat’s life in the penthouse. At first, comfortable with his shmancy new life, Alex grows to miss his old life and learns that it’s lonely at the top.

When Melman loses his first tooth, he fears he won't be Kate's baby any more and goes on a city-wide chase to recover his tooth before Kate can replace him with a younger, cuter animal.

With his friends pursuing their own ‘things,’ Alex feels like he’s being left behind! When he undertakes an epic adventure of his own – a trip to space – Alex learns that even through life changes, the bonds of friendship don’t have to.