Adventures in Rainbow Country was a 26-week series, produced by Manitou Productions Ltd. of Toronto, with the CBC, ABC Television Films Ltd. of Britain and the Australian Broadcasting Commission as co-partners financing the project. It was seen on both English and French CBC-TV networks (as well as on British and Australian television).

Adventures in Rainbow Country concerned the modern-day adventures of Billy Williams (Stephen Cottier), a 14-year-old Canadian boy growing up on the rugged and beautiful north shore of Georgian Bay, Manitoulin Island and the fabulous mining and bush country of the north.

In addition to young Cottier, the principal players were Susan Conway as Billy's rambunctious 13-year old sister, Hannah; Lois Maxwell as Nancy, his mother; Albert Millaire as Roger, a tough, but educated outdoorsman; Alan Mills as Dougal, an expert Great Lakes sailor; Wally Koster as Dennis, an Australian-born bush pilot; and Buckley Petawabana, 18, as Pete, Billy's Indian friend.