Kent's Joint Response Unit was set up to deal with dual police and medical emergencies.Paramedic Chelsea and Special Constable Robbie are in action during a welfare check on a man they discover on his kitchen floor in a pool of blood. He says he is the victim of a hit-and-run car incident, but treatment of his head injury reveals what might be an altogether different story.The latest annual figures reveal, almost 6,500 people were killed or injured on UK roads in accidents involving a drunk driver. Police Constable Ben, accompanied by Special Constable Clive, and Paramedic Mark, chase down a motorist suspected of being intoxicated, who's just fled the scene of a collision. When the JRU team catch up with the man, they find a half empty bottle of vodka in his car. The driver fails his breath test, blowing almost four times over the legal drink drive limit.There are around 100,000 UK hospital admissions each year due to heart attacks: that's one every five minutes. Paramedic Sinead uses her specialist skills, while accompanying a patient to hospital following a fall caused by a suspected cardiac arrest. After a blue light dash across Maidstone, the man is rushed into A & E, just as he suffers another bradycardia attack.Finally, as darkness descends on the Isle of Grain, revellers gather and take over a disused sea fort, to hold an illegal party. The incident quickly escalates into a major operation involving Police, Ambulance, Fire & Rescue, and Coast Guard crews, as well as a police helicopter overhead. It's a potentially dangerous situation made worse by an incoming tide that cuts the partygoers off from urgent medical care.