Grouper (SS-214) After two years of Pacific combat, the submarine USS Grouper is finally ordered home. But her orders show a slight detour -- via Australia. Helping pave the way to ultimate invasion of the Solomon Islands, the sub transports Aussie raiders and their native guides to a hidden cove at the edge of the jungle. Understanding their Australian allies' jargon and the ‘pidgin’ English of the natives is one obstacle for the weary crew but, before the mission is complete, the enemy provides another.