An amazing story of survival for an elderly couple, whose car plunged into a dam at Creswick, near Ballarat.

Their car lost control on the Midland Highway

A 39-year-old man travelling behind saw it and jumped into the water, rescuing the 82-year-old male driver, who was trapped.

A policeman came across the commotion and also dived in, rescuing the 80-year-old female passenger.