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.

When a snowstorm blocks Kate from accessing the zoo, Melman decides to become "substitute Kate" and make sure the animals are cared for; a series of stumbles makes Melman question whether he's cut out for the job.

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 realize that she underestimated Lala.

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.

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.

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