Mr. Wolf has just started teaching fourth grade at Hazelwood Elementary. He wants the first day of school to go well, but he's got his hands full with his new class. Some of his students include: Margot , a new student who is trying to make friends. She might have something in common with Sampson , who brought something special to school for show-and-tell. Aziza just wants everyone to be quiet and do their work. Meanwhile, Penny , who is VERY sleepy because she has a new baby brother at home, goes missing! This delightful new series captures the everyday -- and unexpected -- ups and downs of a fourth-grade classroom.