The Monster in 3B Clifford's Puppy Days : Season 1 Episode 3

New neighbors are greeted with suspsicion by the gang, particularly Norville. They fear that the new neighbors might be keeping a monster, an idea which seems to be confirmed by an unearthly wailing coming from their unit. To figure what's really going on, they stage a stakeout, but their plan go awry and they worry that the worst has happened: one of them has been captured by the monster. In the end, it turns out that there is no monster and what they really have are some new friends.