This was the last episode of the first season to open with a shot of Sergeant Preston riding his horse Rex along an unfrozen trail, with Yukon King running alongside. The remaining 17 episodes would open with the more familiar shot of Sergeant Preston driving King and his dog team through the snow. The pattern of the "unfrozen" shot for episodes aired during the fall and "frozen" shots for episodes aired during the winter would be continued for season 2.