Melman finds a lucky flower and is convinced that today will be his best day ever. But when a series of unlucky events threatens to ruin his day, he's faced with the choice to drown in his sorrows or "take back the day."

Gloria's belief in herself is tested when she auditions for "Swan Lake" and gets rejected because she's a hippo. With some help from her friends, she learns that she doesn't need someone else to decide she's a prima hipporina—she already is.

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.

When Melman learns that his friends stay up late every New Year’s Eve to watch the ball drop in Times Square, he’s determined to stay up with the big kids and join the fun.

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.

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.

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 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.

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.

When Ranger Hoof invites Marty to Junior Ranger Horse training, Marty insists on playing by the book- the ranger rulebook.

When newly minted journalist Gloria creates her own Habitat podcast, The Daily Glo (“For animals, by animals!”), she’s eager to cover all the “scoops” around the zoo.

When Rocky asks Alex if he’ll direct his original musical, RATS, Alex accepts, despite having zero directing experience. When the show devolves into disaster, Alex realizes he should’ve told Rocky he was a newbie at directing, and still has lots to learn.

When Marty catches the eye of Hoof’s human ranger, he’s offered the chance to skip the rest of junior ranger training and become New York’s first Zebra Ranger Horse!