Matt gets a call from some fishermen who report a large crocodile is menacing them down on the river. Matt gives Willow and Jono a call and they set a trap. But nobody guessed how big this crocodile, is and a battle ensues between the Outback's greatest crocodile catcher and one very big crocodile.

Matt's helping clear out problem crocodiles from his mate Paul's station so he can get on with his cattle work, when Paul's three dogs go into the dam - and only two come back out. There seem to be crocodiles everywhere Matt turns, in the cattle's watering holes, on the flooded fence lines, even at a nearby tourist spot. He's got his work cut out for him.

Matt and the boys have been asked to control the crocodile population in a water system alongside a large cattle station. They need to remove one large crocodile and a handful of smaller crocs to reduce the damage they are causing to the cattle. But the monsoon is on the horizon and they'll have to finish a week's worth of work in only 48 hours.

The giant crocodile Matt has been hunting for has smashed up his traps again. This is a powerful animal and a master of camouflage. Matt and the boys head into the swamp to flush him out - but this massive crocodile will push Matt to his croc catching limits.

The Northern Territory's Marty River is home to thousands of cattle and the greatest density of saltwater crocs in Australia. In Matt's eyes, both have the right to peacefully exist here, so the boys are tackling the biggest challenge yet - removing 30 crocodiles in just one week. When they arrive, the area is literally crawling with crocs. If the boys fall in, they're dinner.

Time is running out as Matt and the boys continue their quest to catch 30 crocodiles in the Northern Territory's Mary River in just one week. The crocs are hitting the cattle at a fast rate, so the pressure is on to get the croc population under control. With half the week already gone, they've only caught 6 crocs. It's time to amp things up by setting some traps with feral pigs for bait.

It's the boys' final chance to reach their target of 30 crocodiles in one week up at the Northern Territory's Mary River. Overnight, the boys caught a massive crocodile that could be the biggest catch of the week. He was too big to fit in the boat, so they've waited until daybreak to pull him onto land. This time, they've brought along a vet to anaesthetise the bigger crocs so they can be safely transported. Will the boys reach their 30 croc target before the week is done?

Matt is out at the Finniss River Station again, he's herding cattle for Paul the station owner but he spots one very large crocodile in the paddock where the cattle are heading. But the day doesn't end there, Matt and the boys need to thin out the population in the Finniss River and that means pulling an all-nighter.