The Great White Shark meets the Greatest of All-Time.
Discovery has released the first official trailer for Olympic gold medalist Michael Phelps' race against a great white shark.
The race will be broadcast at 8 p.m. ET on July 23 and has been titled "Phelps vs. Shark: The Battle for Ocean Supremacy."
"The Great White Shark meets the Greatest of All-Time," the dramatic voiceover says.
Watch the trailer below:
Phelps will also make an appearance on the network's "Shark School with Michael Phelps” on July 30.