Although she is shy and quiet, Kitty likes going to school and this is all due to her loving teacher, Miss Seabrooke. Only Miss Seabrooke knows the right way to open her thermos, do up her jacket and sing songs to the class. And only Miss Seabrooke is always there when Kitty needs a hug. So imagine Kitty's desperation when she arrives at school one morning and Miss Seabrooke is nowhere to be found. Instead, her comfortable routine has been thrown into disarray by a substitute teacher named Mr. Omar, a very tall giraffe who is nothing like what Kitty's used to. Kitty knows that Miss Seabrooke is counting on her to be helpful. She also realizes that Mr. Omar will need assistance with all the classroom routines and rules. So, instead of giving in to her fear and uncertainty, she sets about helping Mr. Omar and the other kids with the daily chores and lessons. They get through their day very happily together, and Kitty realizes that sometimes change is good and maybe even fun!