Under Pressure

Under Pressure is the fourty-second episode of both Digimon Adventure and the Digimon anime series.

Summary
All hope seems lost for the kids, until Whamon shows up, ambushing MetalSeadramon and carrying them away. Minutes later, MetalSeadramon begins a search with a group of Divermon, while Whamon finds a distant island where the kids can rest. After everyone attempts to fish on the island, Gomamon hears of some nearby Divermon from a school of fish and they're soon on the run. Whamon escapes by swimming to an area of high pressure in the ocean where the Divermon cannot follow, but MetalSeadramon catches up. When Whamon surfaces near a coast, Agumon digivolves to WarGreymon in order to fight MetalSeadramon. While the other Digimon defend the kids, MetalSeadramon attemptes to crush WarGreymon in his jaws.

English Dub edit
Other than the final part from the Japanese version of Episode 41 is used for the beginning of the english version in this epsiode, the final part from the Japanese version, which is the final part of WarGreymon's battle against MetalSeadramon and Whamon's sacrifice is moved to the beginning of Episode 43 in the English version.