Stuff is going missing in the leisure centre. As head of security, Joy tasks Mick with getting to the bottom of it. That means spending a night in the leisure centre all alone, or with Danny - Mick isn't sure what's worse. Together the boys vow to keep an eye out and get to the bottom of this mystery once and for all. However, with a sleepwalking Joy prowling the corridors it seems like everyone is going to get more than they bargained for in the morning!