In part two of the ladies' Canada trip, Lauri's accusations of indiscretions leaves Vicki's head spinning and launches the mother of all dinner table debacles. Tamra accuses Gretchen of lying, making Gretchen question their friendship. A snowmobile adventure takes a surprising turn, and a subzero vodka binge leaves Tamra tongue-tied in the worst way possible. Back in Orange County, Heather guest stars on a new sitcom.