Emile Michel, Lapland, orphan, is obliged to bring back within the tribe the ancestral totem: a gold plumb line "borrowed" formerly by his grandfather Raymond Michel. His quest will take him aboard a floating boat that crosses Baffin Bay in the icy waters of Greenland.
| Actor | Role |
|---|---|
 Philippe ClévenotMonsieur T'Champ | Monsieur T'Champ |
 Charlotte Maury-SentierLucie | Lucie |
 Bernard GiraudeauJacques Mercier | Jacques Mercier |
 Jean-Yves TualEmile Michel | Emile Michel |
 Paul Crauchet'Smoking' | 'Smoking' |
 Michelle MarquaisMathilde | Mathilde |
 Claude DunetonMonsieur Claudine | Monsieur Claudine |
 Luc-Antoine Diquéro'Mimosa' | 'Mimosa' |
| JJean de ConinckRené | René |
 Jean-Paul Bonnaire'Sémaphore' | 'Sémaphore' |
| SSophie EngelOlive | Olive |
 François DyrekBear man | Bear man |
| JJean-Claude VandevilleBanker | Banker |
 Jacques BoudetProfessor | Professor |
 Jean-Marie CornilleThe Marseillais | The Marseillais |
 Alain FrérotThe steamman | The steamman |
| JJacques Le CarpentierThe exhibitionist | The exhibitionist |
 Albert DrayMailloux Darrière | Mailloux Darrière |
 Gilles SégalSkating teacher | Skating teacher |
 Carole FranckNot listed | Not listed |