Led Astray / Wedding Bell Blues

S2 E22: A visiting dog influences Clifford to do things that he knows aren't right. But Clifford soon learns that he can has the strength of character to stand up for himself and what he believes. Ms. Carrington is getting married and the kids speculate about what kind of teacher “Mrs. Grumbly” will be. Based on her name, they assume she will not be very nice. But they soon learn that you can’t judge someone until you’ve actually met them.