Tonight’s the night for daredevil Nik Wallenda’s death-defying wire-walk over Niagara Falls. Crowds have been gathering at the Falls all week as workers set up the steel cable that Wallenda will walk across over the Niagara Gorge from the American side of the Falls to the Canadian side.

The 33-year-old Sarasota, Florida-born Nik Wallenda is a member of the famed Flying Wallendas. The patriarch of the family of stunt performers, Karl Wallenda, lost his life in 1978 during a high-wire walk in Puerto Rico. He was 73 years old.

The wire-walk will be broadcast on ABC beginning at 8 p.m. Eastern.