The American couple ventured into the croc-infested waterways of the Top End equipped with foam-clad remote controlled boats carrying GoPro miniature cameras in order to film "the dinner's-eye view" as a crocodile attacks.
Frost, who hails from Virginia, said he had devoted his life to river conservation and became fascinated with saltwater crocodiles and their habitats on a trip to Australia a few years ago.
He was captivated by the successful conservation program to restore crocodile populations in NT waterways, and the outlawing of unlicensed hunting.
"Saltwater crocs have the strongest recorded bite force of any animal on the planet — [the] kind of force can easily crush a human skull," Frost said.
Because of the inherent danger in getting close enough to film crocodiles, Frost stayed in a boat while he deployed remote-controlled toy boats jerry-rigged to hold the cameras.
"Even something as simple as a tripod being up on the boat can be dangerous when you're doing this kind of work," Frost said.
"I definitely have an enormous respect for the creature, and my heart is always going.
"I'm always thinking about every little thing that could go wrong to make sure that I stay safe and that I keep my team safe as well ... So far I'm still alive, and I've got all my fingers and toes."