HOOKED!

Experience colossal underwater goliaths. Witness extraordinary encounters in the ultimate challenges of man vs. beast. In New Zealand, Brian Harkin and Matt Watson show remarkable determination in a fight with a whopper dogtooth tuna. Then, Martin Arostegui goes after a world record lemon shark and decides to take on an even bigger challenge: fishing for big sharks with a fly rod. Next, it's an arapaima showdown when angler Keith Purton battles a scaly, armored behemoth. In the Gulf of Mexico, a teenager gets down-and-dirty with the Silver King - a titanic, thrashing tarpon. Finally, pro-fisherman Jair Rigotti chases a lifelong obsession - hooking a giant piraiba and enduring the battle to tell the tale. Awed by their speed, size and strength, encounters with these amazing monster fish help us understand and protect them to ensure they forever rule our planet's waters.