High-stakes poker is the game as the IMF team boards a luxury liner and try to win an emerald in a card game - a gem with microfilm attached to one of its facets.
- Peter Graves as Jim Phelps
- Martin Landau as Rollin Hand
- Barbara Bain as Cinnamon Carter
- Greg Morris as Barney Collier
- Peter Lupus as Willy Armitage