Numbers 3 and 4 are in the Cosy Room and 3 says 4 isn't good at noticing things. On location, a teddy bear jumps around and things disappear, but a girl doesn't notice. The Numbertaker is causing trouble, as 4 discovers. A pile of chairs collapses, a lady's lipstick turns to tomato sauce, a teacher's scissors turn into bananas and a gorilla appears - but still no-one notices.
The Numberjacks stop the Numbertaker taking things away and get people noticing - but then he starts taking people away. Brain Gain helps the kids to notice what's going on and chase the Numbertaker away.