The Grantchester star revealed he has had two near-death experiences when shooting his much-loved Extreme Fishing series on location and admitted that he was once almost swallowed up by a terrifying female shark when filming in South Africa.
Speaking exclusively to Express.co.uk, he dished: "We thought it would be a really good idea to just go down in a cage, I mean that very loosely, it was just one of those flimsy cages.
"You get the females coming in to feed and there are a lot of seals in the area so these guys threw a tuna head in just to draw the female and it was a real Jaws moment."
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Robson will return to screens on the Travel Channel's Grand Slam Fishing this evening
We were just millimetres away from a very different story
He added: "Visibility was really bad and this female came at us at about 30 miles per hours and just hit us
"It slammed into the cage, someone saw the tooth come out of it's mouth and you don’t have to be bitten by a great white to bleed, if it just opens its mouth.
"We were just millimetres away from a very different story."
Speaking about his upcoming series Robson Green: Grand Slam Fishing, the 52-year-old teased that he will manage to achieve quite the accolade.
"There's an achievement that only three other anglers since records have achieved, so that’s pretty cool," he enthused.
Robson has gathered legions of fans across the world with his fishing shows
The keen angler continued: "You’re not in pursuit of the impossible but they’re called Grand Slams for a reason.
"You're after some of the most illusive fish around, hardest fish to catch, powerful, beautiful, and if you catch them you get into the record books and very few people have done that.
Robson Green: Grand Slam Fishing airs tonight at 9pm on the Travel Channel.