The Hunt For Mega Great White Shark Named Collossus

Divers attempt to lure the big and dangerous shark from the depths of the ocean.
2:50 | 08/10/14

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Transcript for The Hunt For Mega Great White Shark Named Collossus
? Music is decades old, still scares me. The story of the two--year-old hunt for a megagreat shark, in order to lure him out of the deep, divers use some crazy contraptions. The search documented in detail, filled with tense moments and close encounters, not to mention, nerves of steel. For 23 years, jack and Chris have braved shark-infested waters pursuing one of to world's deadliest predators in the name of science. Now they're on a quest to find this 14-foot-long, 3,000-pound great white shark. I first met the shark back in 2011, at that iconic scene that has seen around the world. Cous us is has left his favorite hunting ground. Reporter: These waters are filled with great white. To find colussus, they rely on a brand-new clue. Following this lead, his team of experts begin to employing terrify tactics after terrifying tactics. The duo invents and test cutting-edge new devices. The shark stalkers traveled from South Africa to New Zealand, only to find even larger sharks. Coming to dangerously close to a gang of great whites. But at the end of the day, he says that he would do anything to help protect these deadly, but noble collie church and we have a lot of fun with shark week, but it's about promoting shark awareness. So the shark, the jaws music. But a little bit great white 411, it's the largest population in 20 years. I'm fascinating by sharks. I kind of love them. You do? I like them behind glass or on TV. Scary. You can catch the start of discovery's shark week with more air jaws:fins of furry. Tonight at 8:00 A.M. It's also on shark week on "Good morning America." Check it out tomorrow morning. Dan, why didn't you join her on this excursion? My wife disapproved. Shockingly ginger loved it. She's been talking to me about it for weeks. Coming up -- we're gathering around the campfire to enjoy

This transcript has been automatically generated and may not be 100% accurate.

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