As help descends upon the balloon crash site, three lives hang in the balance - leading Jack to finally confess his true feelings for Paige and leaving Karl forced to take drastic measures to ensure the survival of one of the wounded.

Mark is reluctant to leave Steph's side as she recovers in hospital. Knowing he could have lost her, Mark's priorities shift and he takes time off work to be with her, but will it also change his attitude towards the potential of surrogacy?