When Melman loses his first tooth, he fears he won't be Kate's baby anymore and goes on a citywide chase to recover it 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; when Alex tags along for the ride, Marty learns that it takes a whole lot of teamwork.
During the Lunar New Year festival, Alex is bummed 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.
After growing into a froglet, Lala is ready to finally join the gang on a big adventure in the city; Gloria goes overboard in trying to protect her tiny friend in the big world -- only to realise that she underestimated Lala.
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.
Gloria meets a shy hermit crab with a secret talent for tap dancing and plans a flashy production; when she pushes the introverted crab too far, she learns to respect her shy friends' comfort levels.
