As we reach our teenage years our body is stronger than ever before. Our immune system is nearing full strength, whilst our still growing bodies have incredible healing powers. Just as well, because teens have limited experience of assessing danger and so tend to take uncalculated risks, which can have fatal consequences. The victim of a stabbing and two girls with alcohol poisoning are rushed to hospital in this episode, while the family of a boy with a tumour on his spinal cord is faced with an agonising decision.