After years of travel, the Endurance crew transits the wormhole, arriving in a distant planetary system circling a supermassive black hole named Gargantua. Cooper, Brand, and Doyle take a small spacecraft to the first candidate planet, orbiting deep in the black hole's gravity well, only to find that it is an inhospitable ocean world ravaged by colossal waves. In the ensuing evacuation, Doyle is swept away and killed by a wave, but Cooper and Brand narrowly manage to escape. Due to severe time dilation in which one hour spent on the planet equals seven years on Earth, 23 years have passed upon their return to the Endurance.