The story of Megan O'Mahony, who was not expected to live long after she was born with a rare condition called holoprosencephaly, which prevents the foetal brain from developing correctly. Consultant plastic surgeon Professor Michael Earley recognised she was responsive to her environment and Megan has now survived numerous hospital visits and procedures, including having her cleft lip and palate repaired. This documentary follows her and her family as they prepare for her to undergo complex and invasive surgery to correct the shape of her skull bones.