Grant attempts the dangerous 515 km/h world water speed record. The team tries flyboarding, Tom breaks a rib and Denyer performs acrobatics. They attend surf school with Tom Carroll, where Grant nearly drowns. Finally, Felicity leads intense breath-hold survival challenges.

After a lesson from champion Rhiannan Iffland, Rob attempts a shocking 27-metre cliff dive. The crew returns to Fiji for a beach party and fire dance. Felicity takes the boys tow-in surfing, followed by a crazy party on a floating bar.

The TopKnotz challenge Olympic kayaker Noemie Fox in a rough water race, nearly drowning Grant. The team takes a South Pacific cruise, and Grant's jetski antics end in a wipeout. It's a crazy land-vs-sea race from Sydney to Palm Beach.

The Topknotz crew blasts off in a thrilling Jet Sprint boat ride. Tom teaches Rob surfboat rowing, where Rob is violently ejected. Grant tours a luxury superyacht. Later, Rob attempts a world record by being towed on a donut tube.

The TopKnotz team battles treacherous New Zealand rapids on a giant inflatable unicorn. They receive a Māori welcome and participate in a haka. Miguel cooks a seafood delicacy on a glacier. Grant pilots an incredibly fast racing boat.

Our five hosts head to Fiji for an epic dive adventure. Rob & Tom catch up with Judy Johnson, a kiwi ocean swimmer, who became a global internet sensation after swimming with a family of Orcas. Grant, Flick & Rob review the Awake Jetboard.