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.

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.