It's How You Play the Game Totally Spies! : Season 2 Episode 5

Zanzibar is winning every event in the Winter Olympics despite the fact they aren't even training. The spies go undercover at the games to find out if the team's coach has developed a new and undetectable method of cheating but find themselves in hot water. Or rather cold water as Sam and Alex face drowning in an icy lake while Clover undergoes another bizarre physical transformation.