Holly shows the first signs of his computer senility and endangers Lister’s life which activates the back up computer. The team rally around the new computer Queeg, but soon realise that he is a maniacal beast who demands order and proper ship regulations. After forcing Lister and Cat to work for their food and taking control of Rimmer’s body for exercises, the gang begin to appreciate Holly a little more and set about devising a way to rid the ship of Queeg.