At the Holby Docks, a drum of toxic gas falls on two dockers - one dies and the other suffers a badly burnt leg. Other workers are also poisoned and the team try to identify the substance. Duffy advises a young girl, Sophie, to drink milk after drinking car fluid from her fathers garage. A stubborn man, being treated by Charlie after being hit on the head with a golf ball, is not happy with his treatment and says he will complain to Charlie's boss.