This is the incredible story of Trishna and Krishna, twin girls born joined at the head. Abandoned shortly after birth at an orphanage in Bangladesh, they had little chance of survival, until they were saved and taken to Australia by an aid worker. Now, through a series of delicate operations extending over the course of two years, surgeons are prepared to separate the twins. For the last two years surgeons have been battling to save the lives of these two little girls. The first task of the medical team was to get the twins strong enough to undergo the traumatic surgery to separate them. This in itself involved a series of delicate operations to prepare them for their final ordeal and although the separation has been a success there is still a long way to go. Since the beginning, surgeons knew there was no guarantee of survival for either of the girls - but without surgery there was no hope at all. With exclusive access to this extraordinary human and medical drama, our cameras have been with Trishna and Krishna on each moment of their journey.