 As the self-destruct can only be over-ridden by a senior officer, all of whom are dead, Kryten performs a mind-swap on Lister, temporarily placing the mind of a female officer of suitable rank who can over-ride the self-destruct.Although this fails, the group find that the scutter only connected the vending machine to the self-destruct countdown and not the ship's self-destruct bomb, when it vends Lister's order.They are soon left annoyed when Holly admits to having removed the bomb years ago and failed to notify anyone of this.