Old Jack and Salty are tidying up on the Rainbow and sorting out the recycling. Jack realises he has hidden Salty's tennis ball at the bottom of the box, and it's not the first time he's hidden something belonging to someone else! In the rockpool, Bertrum the Butterfish is tidying up - he thinks the rockpool floor is very messy. Sally the Starfish is puzzled - where has her shell collection gone?