Overview:Inspector Sam Durrant needs the fire brigade to help rescue a cat stuck up a tree. Jo finds out just how itchy it must be for a cat to have ear mites. Inspector Clare Dew investigates why a cat is over-grooming. Jo helps out in an operation on young feline mum Sarah at Harmsworth. At Newbrook Animal Centre we meet Mr Wobbles, who needs a very special home. And in "Small Cat Diaries", we take a final behind the scenes look at what Jo has learnt whilst filming the series.