BALTIMORE (WJZ) – – A new TV spot is airing hyping the Shark Week showdown between multi-Olympic gold medalist Michael Phelps and a great white shark.

During Discovery Channel’s Shark Week, Phelps will participate in the special event “Shark: Great Gold Vs Great White.” During the special, Phelps is scheduled to go head to head with the fish in a battle for ocean supremacy.

Discovery is already calling the special “an event so monumental no one has ever attempted it before” in its press release.

They are one of the fastest and most efficient predators on the planet: Sharks. He is our greatest champion to ever get in the water: Michael Phelps. 39 world records. 23 Olympic golds. But he has one competition left to win. An event so monumental no one has ever attempted it before. The world’s most decorated athlete takes on the ocean’s most efficient predator: Phelps V Shark – the race is on! Produced by Peacock Productions.

‘Phelps vs. Shark: Great Gold vs. Great White is set to air at 7 p.m. CT on Sunday, July 23.