When Rocky asks Alex if he'll direct his original musical, "RATS," Alex accepts despite having no experience; when the show devolves into disaster, Alex realises he should've told Rocky he was a newbie at directing.
When Gloria decides to spend a day at the Central Park Pond with Lala, she's shocked and intimidated to find Lala leaping high into the sky with her new frog friends.
The Nature Channel prompts Melman to believe that he and the gang are too different to live under one roof; Melman escapes to the Bronx Zoo to find his real herd: other giraffes.
Marty is offered the chance to skip the rest of junior ranger training and become New York's first Zebra Ranger Horse; after his first day on the job, Marty realises he's not as ready as he thought.
With his friends pursuing their own dreams, Alex feels like he's being left behind; when he goes on an epic adventure of his own -- a trip to space -- Alex learns that even though life changes, the bonds of friendship don't have to.