The Flying Doctors - Season 4 Episode 21 -

A young boy named Ricky gets hit by lightning. David, Kate and Sam manages to get there, but the storm makes sure they can't take off. Ricky is in agony and Kate wants to let Ricky die. But David says he, as a doctor, can't just let a patient die. Finally a helicopter gets there and Ricky is brought to hospital. He will be all right.