A marine biologist filming off Costa Rica recently captured some incredible footage of what happens when one of the ocean’s top predators, a tiger shark, becomes the prey of another ocean predator, the killer whale.

The video, captured by Edwar Herreño, shows six killer whales methodically corralling and killing a 10-foot long shark. Next to the massive orcas, the tiger shark doesn’t look like the fearsome killer that it’s known to be.

Herreño posted the clip to Vimeo with the caption, “After 20 years [of] diving, 10 of them at Cocos Island, [this was] the most incredible experience so far at sea. I just filled my tank for 20 more years.”