Big Bill arrives as usual in a cloud of dust but it might be the last dust the Overflow sees for a long time. He has no time for small talk as he demonstrates the height to where the Darling River flooded in 1973. A tropical cyclone has dumped a huge amount of water in Queensland and it is working its way down the vast Murray-Darling river system. What will it mean for the Overflow and for the campers on the river bank?
