Former call-taker Laura goes out on her very first shift on the road as a paramedic. Her first call-out sees her attend a man suffering chest pains at Sydney's busy airport, while veteran paramedic Carolyn faces a life or death situation when a 90 year old woman suffers a heart attack. On a construction site, Duty Operations Manager Brian needs to rescue a worker who's fallen from a height. But getting him out of the building site into the ambulance proves to be extremely tricky.