In Medway, Officers Jon and Jodie are joined by paramedic Mark in order to deal with a dog walker in cardiac arrest. Responding to a call about a man who has gone into anaphylactic shock after consuming peanuts, Paramedic Alex and Special Constable Dan attempt to stabilise him as his airways close. Special Constable Rebecca and Paramedic Mark are called to a domestic incident where a woman has stabbed a man and smashed up a flat, police attempt to trace the subject while the victim is tended to.