Hosts announce that the next leg of the race will begin in Antarctica and that the racers will have to modify their vehicles for ocean travel. On the way to Antarctica, Steed's vehicle sinks, resulting in his elimination and death when he encounters a mermaid (who is a sea monster) on a small island, who in turn proceeds to feed him to her ravenous offspring. The first contestant to reach Antarctica is Gorthan, who is also eliminated when he accidentally causes himself and his vehicle to float away on an iceberg after being goaded into touching his tongue to a metal pole by Biff and Buzz. As Tom, Jerry, and Grammy arrive, Grammy is eliminated when she and Squirty are accidentally swallowed by a whale thanks to Tom's machinations. The hosts are then notified by J.W. that the racers will have to modify their vehicles again for underwater travel to Australia. While racing underwater, Tom faces several problems, such as his car being taken over by seals and his fish juice spray attracting sharks, ultimately resulting in his elimination when he crashes into a large block of concrete and is crushed by an anchor. Upon arriving in Australia, Jerry then continues racing across Australia to Borneo, where the finish line has been reassigned to. Grammy returns to the race when the whale that swallowed her and Squirty spits them out, while Tom also returns after Irving flies to Australia and rescues him under J.W.'s orders since his antagonistic nature was responsible for the race's great public ratings. The next leg of the race involves the racers modifying their vehicles with balloons for air travel to Borneo. While floating in the air, Tom inadvertently pops Grammy's balloons in an attempt to pop Jerry's, resulting in Grammy's elimination once again when she and Squirty fall to their deaths upon bickering over what they thought was a parachute. J.W. then announces that the true final leg of the race is back to Hollywood, which will involve them traveling back to the finishing point with high-speed jet planes in only five minutes due to the race taking too long. Tom and Jerry are shocked at this latest last-minute change, but they proceed anyway and race through several major locations in Asia, Europe, the Atlantic and the U.S., causing massive yet comedic destruction to numerous monuments in their wake. At the finish line, Tom and Jerry's jet planes break down, causing them to tie on the line. Although they both win because of the tie, J.W. says that, according to the contract, because they tied they will have to race all over again.